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a body of mass 1 kg through with velocity Route 3î+j^ the body splits

Posted by Sarath Sarath 8 years, 2 months ago

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a simple pendulum Bob hasa mass M and length L the ball is drawn such that the string is horizontal and then it is released

Posted by Sarath Sarath 8 years, 2 months ago

CBSE > Class 11 > Physics

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Dimensional analysis of fifteen page

Posted by Santosh Gupta 8 years, 2 months ago

CBSE > Class 11 > Physics

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What is a vector

Posted by Shubham Kumar 8 years, 2 months ago

CBSE > Class 11 > Physics

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Yogesh Rupireddy 8 years, 2 months ago

A physical quantity which has both magnitude and direction

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Laws of conservation momentum?

Posted by Ashif Yum 8 years, 2 months ago

CBSE > Class 11 > Physics

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What is angular momentum

Posted by Arnav Singh 8 years, 2 months ago

CBSE > Class 11 > Physics

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Amar Kumar 8 years, 2 months ago

The angular momentum of any object is defined as the product of the moment of inertia and the angular velocity. It is analogous to linear momentum.

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define cofficient of restitution

Posted by Mohd Sahil 8 years, 2 months ago

CBSE > Class 11 > Physics

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find the work done by force f=(3x squer -7)N in displacing on object from (0,1,1) to(1,0,0)..

Posted by Mohd Sahil 8 years, 2 months ago

CBSE > Class 11 > Physics

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What is relative velocity and relative speed

Posted by Vivekssingh Thakur 8 years, 2 months ago

CBSE > Class 11 > Physics

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I want to know about torque and numericals on torque and angular momentum

Posted by Sana Parween 8 years, 2 months ago

CBSE > Class 11 > Physics

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A particle moving in one dimension with constant acceleration of 10m/s2 is observed to cover a distance of 100m during a 4s interval . How far will the particle move in the next 4s

Posted by Nikhil Shukla 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 2 months ago

from 1st equation u=5 s=ut+1/2at^2 s=5×8+5×64, s=40+320, s=360 m

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What is the difference between limiting and static friction...??

Posted by Swapnil Kumar 4 years, 6 months ago

CBSE > Class 11 > Physics

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Sia ? 4 years, 6 months ago

Static friction is acting due to the body tends to move when a force is acting on it. Limiting friction is the friction acting on a body when it is about to start moving.

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The hero of stunt film Fire 50 gram Bullet from machine gun, such at a speed of 1 km per second, if he fired 20 Bullets in 4 seconds, what average force does he exert against the machine gun during this period?

Posted by Varun Sharma 8 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Yogesh Rupireddy 8 years, 2 months ago

F=50×20×1000/1000×4=250N

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Yogesh Rupireddy 8 years, 2 months ago

F=mnv/t

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Second law of motion is a true law

Posted by Manish Kumar 8 years, 2 months ago

CBSE > Class 11 > Physics

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Himesh Kaushik 8 years, 2 months ago

Yes ,because 2nd law of newton derived the newton 1st and 3rd law of motion

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Varun Sharma 8 years, 2 months ago

Yes,because third and first law derived from it

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What is the relation between coefficient of restitution and loss in kinetic energy

Posted by Keshav Paliwal 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 2 months ago

Coefficient of restitution is directly proportional loss in ke (greater the restitution higher loss in ke)

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Solve 25.21÷60.84 showing divide

Posted by Tanisha Daksh 8 years, 2 months ago

CBSE > Class 11 > Physics

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The angle which a vector i+j+root2k makes with X, Y and Z axis is respectivel

Posted by Aadya Thakur 8 years, 2 months ago

CBSE > Class 11 > Physics

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Explain how the Newton 's first law of motion follows from the second law of motion.

Posted by Anuj Kumar 8 years, 2 months ago

CBSE > Class 11 > Physics

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what us the law of limiting friction

Posted by Mohd Sahil 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Agni Roy 8 years, 2 months ago

Laws of limiting friction:

1. The direction of limiting frictional force is always opposite to the direction of motion.
2. Limiting friction acts tangential to the two surfaces in contact.
3.The magnitude of limiting friction is directly proportional to the normal reaction between the two surfaces.

4. The limiting friction depends upon the material, the nature of the surfaces in contact and their smoothness.
5. For any two given surfaces, the magnitude of limiting friction is independent of the shape or the area of the surfaces in contact so long as the normal reaction remains the same.

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define equilibrium of concurrent forces

Posted by Mohit Singh 8 years, 2 months ago

CBSE > Class 11 > Physics

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What is weightlessness

Posted by Divya Sharma 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Yash Sharma 8 years, 2 months ago

Means their is no gravitational force acting on you

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What is mean by watt

Posted by Rajinraj R 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Bhawna Sain 8 years, 2 months ago

Si units of power

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Can you explain me the concept of ' Free fall ' with all formula and example??

Posted by Piyush Priy 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Amar Kumar 8 years, 2 months ago

Free fall is any motion of a body where gravity is the only force acting on it .

Velocity of free fall is given by

V=g.t

where g is gravitational acceleration and t is the time.

Example The boy drops the ball from a roof of the house and it hits the ground.

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A force p=3mg acts on a block of mass m at the angle of 30 with horizontal the friction force between the block and ground is

Posted by Vaibhav Sharma 8 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Govind Singh 7 years, 11 months ago

Here the vertical component of the force is {tex}F\sin \theta = 3mg\;\sin \left( {30^\circ } \right) = 1.5mg{/tex}, and it will be in vertically upward. So the resultant force will be 1.5mg - mg = 0.5mg, and upwards. Since the resultant force is upwards, the normal reaction between ground and the block will be zero. So the frictional force will also be zero.

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Kunal Arora 5 years, 4 months ago

I don't know the answer

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What's so important about integration and differentiation

Posted by Aparna Singh 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Kunal Arora 8 years, 2 months ago

It is used to find some physical quantities such as speed / velocity / acceleration etc. Instantaneously.....

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How in circular or rotational motion the linear velocity is different

Posted by Sana Parween 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 2 months ago

In uniform circular motion speed is constant but velocity is variable because regular change in direction

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Strain has unit but no dimensions.why

Posted by Arnav Singh 8 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 2 months ago

Strain=▲L/L, it's dimensional formula is [L]/[L] because both are length [L]^1×[L]^-1 both cancel each other so strain has no dimension

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for a given mass and size, moment of inertia of a solid disc is smaller than that of ring, why?

Posted by Sapna Sorrot 8 years, 2 months ago

CBSE > Class 11 > Physics

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what is angular velocity

Posted by Saif Khan 8 years, 2 months ago

CBSE > Class 11 > Physics

3 answers

Himanshu Sharma 8 years, 2 months ago

The rate changing of angular displacement is called angular velocity

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Rahul Poddar 8 years, 2 months ago

Angular velocity is defined as the rate of change of angular displacement by time and it's formula is omega=d (theta)/dt

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Amar Kumar 8 years, 2 months ago

Angular velocity is defined as change of the angular displacement in a unit of time. The unit of angular velocity is revolution per unit time or radians per second. We show angular velocity with the Greek letter “ω” omega.

Average Velocity= Circumference of the Circle/Time

Average Speed/Velocity=2πr/T

where, T is the period of the system and r is the radius of the revolution.

ω=2π/T=2πf where, f is frequency and T is the period

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Can a body having uniform speed and varying velocity?

Posted by Shnaya Rai 8 years, 2 months ago

CBSE > Class 11 > Physics