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Newton's law of motion is.... external force applied to the body is directly proportional to the rate of change of momentum .... And it is real law of motion because other 2 can be prooved by this law.....

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What is p-t graph ? Mention its uses.

Posted by Kaveri [email protected] 6 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Anushika Payasi 6 years, 2 months ago

It is momentum and time graph and it tells about impulse...

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What do you mean by physical quantity ? Write the types of physical quantity and defined each with examples

Posted by Vatsalya Arora Arora 6 years, 2 months ago

CBSE > Class 11 > Physics

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I want to know..11 ka kon kon sa topic hai jo 12 me v use hone wala hai..

Posted by Ankit Raj 6 years, 2 months ago

CBSE > Class 11 > Physics

4 answers

Ankit Raj 6 years, 2 months ago

Mene abhi tak kuch nahi padha hai isliye mein chahta hu jo topic ya chapter 12 me v hai bas usey hi padhu ..because mujhe 12 me 90%+ laana hai

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Ankit Raj 6 years, 2 months ago

I ask for pcm only

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Aditya Narayan Singh 6 years, 2 months ago

It's not only about physics,it's sbout all subjects

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Rudransh Gupta 6 years, 2 months ago

All the topics of pphysics are importan for 12 actually they are the basis of 12 physics

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Define Centripetal force.

Posted by Md Fardeen 6 years, 2 months ago

CBSE > Class 11 > Physics

3 answers

Deepak Dhewa 6 years, 2 months ago

The force of gravity acting on a satellite around earth is an example of centripetal force

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Aditya Narayan Singh 6 years, 2 months ago

Centripetal force is the force acting on circular body,towards its center when the body is in motion.

4Thank You

Mahema C M 6 years, 2 months ago

The force acting towards the centre in a circular motion

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Derive an expression for moment of inertia of a circular disc about an axis passing through its Centre and perpendicular to its plane.

Posted by Anuj Karn 6 years, 2 months ago

CBSE > Class 11 > Physics

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Parllel Axis theroem

Posted by Lucky Papa 6 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Gaurav Choudhary 6 years, 2 months ago

I = md^2 + I(centre of mass) According to the parallel axis theorem the moment of inertia of any rigid body about any axis is equal to the moment of inertia of the body about the another Axis passing through the centre of the mass of the body in the direction parallel to the given Axis the product of the total mass of the body M and the square of the separation distance between the two parallel Axes is shown in figure

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A wheel of radius 1m rolls forward half a revolution on a horizontal ground the magnitude of the displacement of the point of the wheel initially in contact with the ground is ?

Posted by Shrutika Bhoir 6 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Sia ? 6 years, 2 months ago

Horizontal distance covered by the wheel in half revolution

= {tex}\pi{/tex}R.
So the displacement of the point which was initially in contact with ground = AA' =
{tex}\begin{array}{l}{\sqrt{(\pi R)^{2}+(2 R)^{2}}} \\ {(A s R=1 m)}\end{array} {/tex}{tex}=R \sqrt{\pi^{2}+4}=\sqrt{\pi^{2}+4}{/tex}

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Posted by Åjã¥ Kûmãπ 6 years, 2 months ago

CBSE > Class 11 > Physics

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Define tension

Posted by Aadi Gupta 6 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Vaishnavi Singh 6 years, 2 months ago

Tension is a type of force that always acts outwards to the surface.It always apply in the case of string ,rod,chain etc.

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Yogita Ingle 6 years, 2 months ago

Tension may also be described as the action-reaction pair of forces acting at each end of the said elements. Tension could be the opposite of compression.

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find mass of earth , given that radius of earth R= 6400 km, g = 9.8m/s ,G= 6.67×10

Posted by Mohd Parvez 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

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What is the dimensional formula of angular velocity?

Posted by Dinesh Gasyal 6 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Anushika Payasi 6 years, 2 months ago

M0L0T-1

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Ashish Kataria 6 years, 2 months ago

m0 l1 t-1

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What happens when we combine a vector with it's negative vector?

Posted by Chinmaya Kumar Rath 6 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Anushika Payasi 6 years, 2 months ago

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Abhishek Goswami 6 years, 2 months ago

Nahi pata

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Compare stationary and moving objects in 5 points

Posted by Tluangi Khiangte 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

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Find the centre of mass in the letter F

Posted by K Nageswara Rao 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

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Why second law is called real law of motion?

Posted by Arti Singh 6 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Tannu Sharma 6 years, 2 months ago

Second law is real law because with the help of second law we can proof 1st as well as 3rd law of motion.

2Thank You

Krishnakant Silawat 6 years, 2 months ago

Why is Newton's 2nd law called the Real Law of Newton? Which states that there will be no acceleration in the body if no external force is applied on it.This means that a body in rest will remain at rest and a body in uniform motion will remain in uniform motion which is also stated in Newton's 1st law.

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Energy of 484 joule is span in increasing the speed of flywheel from 60 RPM to 360 RPM find find the moment of inertia of wheel

Posted by Ujjval Purohit 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

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Why does a cricket player lower his hand while catching a cricket ball?

Posted by Eku Chauhan 6 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Raman Preet Kaur 6 years, 2 months ago

By lowering his hands down, the cricket player increase the time of force act on his hands .As force and time are related inversly ( force = impulse/time) so the cricketer hurt less???

1Thank You

Soham Dixit 6 years, 2 months ago

In order to increase the time period so that the momentum of the ball falls to zero and the ball does not harm to our hand.

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What is moment of inertia of frustom of cone

Posted by Raghav Bansal 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

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Two straight lines drawn on the same x-t curve make angles 30 degree and 60 degree with the same access which line represents greater velocity

Posted by Nitish Kumar 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

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Uses of moon?

Posted by Kashish Mandlecha 6 years, 2 months ago

CBSE > Class 11 > Physics

2 answers

Kashish Mandlecha 6 years, 2 months ago

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Vikram Shukl 6 years, 2 months ago

Plz check your question

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Is speed become negative or not?

Posted by Shubham Pradhan 6 years, 2 months ago

CBSE > Class 11 > Physics

3 answers

Anushika Payasi 6 years, 2 months ago

Never...

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Jiya Arora????? 6 years, 2 months ago

It can be in opposition direction

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Jiya Arora????? 6 years, 2 months ago

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The anguler velocity of the earth around the sun is increase when it come closer.Why?

Posted by Ashok Kumar 6 years, 2 months ago

CBSE > Class 11 > Physics

0 answers

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Please suggest a topic for saminar

Posted by Jasmin Durga 6 years, 2 months ago

CBSE > Class 11 > Physics

1 answers

Raghav Bansal 6 years, 2 months ago

I think friction is best topic

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Two masses of 1g and4g are moving with equal kinetic energy . The ratio of the magnitude of their moment is

Posted by Khushbu Bhujade 6 years, 2 months ago

CBSE > Class 11 > Physics

3 answers

Pranali Magdum 6 years, 2 months ago

1:2

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Ankit Dahiya 6 years, 2 months ago

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Lokesh Talari 6 years, 2 months ago

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Difference between gravitational mass and inertial mass

Posted by Ritesh Narwal 4 years, 6 months ago

CBSE > Class 11 > Physics

1 answers

Sia ? 4 years, 6 months ago

Gravitational mass is measured by comparing the force of gravity of an unknown mass to the force of gravity of a known mass.
Inertial mass is found by applying a known force to an unknown mass, measuring the acceleration, and applying Newton's Second Law, a = F/m.

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