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For angle of projection which exceed or fall short of 45 degree by an equal amount the ranges are equal. Prove this statement

Posted by Shalini Singh 8 years, 3 months ago

CBSE > Class 11 > Physics

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Show that newtons third law of motion is contained in the second law

Posted by Ranu Dash 8 years, 3 months ago

CBSE > Class 11 > Physics

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What ls force

Posted by Rakesh Roy 8 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Muskan Choudhary 8 years, 3 months ago

Force is a push and pull of an object.

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Utkarsh Kumar 8 years, 3 months ago

Force is an external agency in the form of pull or push between two bodies.it can change direction of a body ,can stop from motion to rest or vice versa or change in direction.

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Explanation of projectile concept

Posted by Navdeep Singh 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Govind Ss 8 years, 3 months ago

When an object is thrown into air with an initial velocity then the object moves freely under gravity is called projectile motion.The path of projectile is called trajectory.

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A bus started from rest in uniform acceleration of 2 metre per second square for 5 seconds if the bus move with the constant velocity for one minute then brakes are applied and was brought to rest in 5 seconds determine the total distance covered by the bus

Posted by Vinayak Sawant 8 years, 3 months ago

CBSE > Class 11 > Physics

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What is thermodynamics?

Posted by Mohd Ruman 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Amar Kumar 8 years, 3 months ago

Thermodynamics is the branch of physics that deals with the relationships between heat and other forms of energy. In particular, it describes how thermal energy is converted to and from other forms of energy and how it affects matter.

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Define 1 joule of work

Posted by Prasuk Jain 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Amar Kumar 8 years, 3 months ago

One Joule is defined as the energy transferred (or work done) to an object when a force of one newton acts on the object in the direction of its motion through a distance of one metre (1 Newton metre or 1 Nm).

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Explain the kinetic friction

Posted by Maan Sandhu 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Amar Kumar 8 years, 3 months ago

Kinetic friction, also known as sliding friction or moving friction, is the amount of retarding force between two objects that are moving relative to each other.

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Using newton's third law prove conservation of linear momentum

Posted by Sresthashree Praharaj 8 years, 3 months ago

CBSE > Class 11 > Physics

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What is localized vector

Posted by Mina Suprava 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Amar Kumar 8 years, 3 months ago

A vector which is drawn parallel to a given vector through a specified point unlike free vector in space is called a localised vector. The effect of a force acting on a body depends not only on the magnitude & direction but also on its point of application & line of action.

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Which law of Newton is failed in the theory of launching of missile

Posted by Gautam Chopra 8 years, 3 months ago

CBSE > Class 11 > Physics

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collision

Posted by Praveen Rana 8 years, 3 months ago

CBSE > Class 11 > Physics

3 answers

Sweety Sheoran 8 years, 3 months ago

A collision is an isolated event in which two or more colliding bodies exert relatively strong forces on each other for a relatively short time

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Lisa Bisoyi 8 years, 3 months ago

Collision is said when two or more objects come in contact to each other and get deflected but if an object doesn't come with contact of another object but changes its path because of the another object then here also collision occurs . eg. Alpha particles diffraction through gold foil .

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Mohd Shaquib 8 years, 3 months ago

Collision ? is said to occur when two objects is crashes with each other

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A projectile is fired from surface of earth with velocity 5m/s at some anglewith horizontal. Another projectileis fired from surface of planet with velocity 3m/s at same angle with horizontal. If the two follows same trajectories the acceleration due to gravity of the planet will what

Posted by Arun Kumar 8 years, 3 months ago

CBSE > Class 11 > Physics

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What is the projectile motion?

Posted by Prashant Prashar 8 years, 3 months ago

CBSE > Class 11 > Physics

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Derive equation for horizontal range of a projectile

Posted by Surbhi Rani 8 years, 3 months ago

CBSE > Class 11 > Physics

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According to Newton third law every force is accompanied by an equal and opposite force . how can a movement ever take place?

Posted by Tarun Yadav 8 years, 3 months ago

CBSE > Class 11 > Physics

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Bullet fired from a gun is a projectile motion explain?

Posted by Arnav Singh 8 years, 3 months ago

CBSE > Class 11 > Physics

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If velocity is constant then it is necessary that acceleration is also constant.explain

Posted by Arnav Singh 8 years, 3 months ago

CBSE > Class 11 > Physics

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Classify the motion in terms of coordinates required to describe the motion. A) Satellite revolving around planet, b) butterfly flying in garden

Posted by Bharat Mathur 8 years, 3 months ago

CBSE > Class 11 > Physics

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How to convert cgs to mks unit

Posted by Saurabh Yadav 8 years, 3 months ago

CBSE > Class 11 > Physics

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Give reason: Why is friction called a necessary evil ?

Posted by Adarsh Singh 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Lisa Bisoyi 8 years, 3 months ago

Because it spoils the spareparts of the vehicles it also spoils the brakes of the vehicles , it also spoils our shoes because due to friction the sole of our shoes get spoiled .

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ABC is a part of ring having radius R2 and ADC is a part of disc having inner radius R1 and outer R2 ABC and ADC have same mass . Then centre of mass will be located from the centre O

Posted by Shivang Tripathi 8 years, 3 months ago

CBSE > Class 11 > Physics

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What are non-conservative forces

Posted by Shivam Kaushal 8 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Sweety Sheoran 8 years, 3 months ago

A force is said to be non-conservative,if work done by or against the force in moving a body from one position to another,depend on the path followed between initial and final positions.

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Swarnali Mondal 8 years, 3 months ago

The type of force which depends upon the path followed and not on the initial and final positions. Eg. Friction Force.

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The length,breadth and thickness of a block are given by l=12cm,b=6cm and t=2.45cm. The volume of the block according to the idea of significant figures should be?

Posted by Jatin Sharma 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Sriguru Sriguru 8 years, 3 months ago

176

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A motar carrunning at the rate of 7m/s can be stop by applying break in 10min show that the total resistance to the motion when break are on one-fourth of the weight of car

Posted by Ashutosh Yadav Yadav 8 years, 3 months ago

CBSE > Class 11 > Physics

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How speed increases from level circular Road to banked circular Road

Posted by Mukul Kumar 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Shivam Kaushal 8 years, 3 months ago

Because there is increase in friction in banked road between wheels and road as in banked road the outer edge of road is raised at small angle

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please provide last year 'half yearly' question papers of all subjects

Posted by Gagan Robin Singh 8 years, 3 months ago

CBSE > Class 11 > Physics

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What is elastic and inelastic collision ?

Posted by Sakshi Dahiya 8 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Sweety Sheoran 8 years, 3 months ago

Elastic Collison :-A Collison in which no loss of kinetic energy is called elastic Collison Inelastic Collison :-A collison in which some loss of kinetic energy is called inelastic collison

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A body of mass m strikes a stationary body of mass M and undergoes an elastic collision.after collision m has a speed one-third of its initial speed.what is the ratio M/m?

Posted by Chander Mohan 8 years, 3 months ago

CBSE > Class 11 > Physics