Recent questions in 11th Physics

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A body of mass 2kg initially at rest moves under the action of an applied force of 7N on a table with coefficient of kinetic friction = 0.1. Calculate the (1) Work done by the applied force in 10s (2) Work done by the friction in 10s (3) Work done by the net force on the body in

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Derive the expression for the potential energy stored in a

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When an air bubble rises in water, what happens to its potential

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What should be the angle between the force and the displacement for maximum and minimum

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What is work done in holding a 15kg suitcase while waiting for a bus for 15

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A light body and a heavy body have same kinetic energy. Which one has greater linear

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Can a body have energy without

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A particle moves along the x – axis form `x = 0 t x = 5m` influence of force given by `F = 7 – 2x + 3x^2`. Calculate the work done in doing

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A body of mass 3kg makes an elastic collision with another body at rest and continues to move in the original direction with a speed equal to one – third of its original speed. Fine the mass of the second

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Show that for a freely falling body the sum of its kinetic energy and potential energy remains constant at all points during its

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Ball A of mass m moving with velocity U collides head on with ball B of mass m at rest. If e be the coefficient of restitution then determine the ratio of final velocities of A and B after the

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If the momentum of the body increases by 20% what will be the increase in the K.E. of the

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If two bodies stick together after collision will the collision be elastic or

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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When an air bubble rises in water, what happens to its potential

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A spring is kept compressed by pressing its ends together lightly. It is then placed in a strong acid, and released. What happens to its stored potential

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A body is moving along Z – axis of a co – ordinate system is subjected to a constant force F is given by `hati,hatj,hatk` `vecF=-hati+2hatj+3hatk` `N,`Where `hati,hatj,hatk` are unit vector along the x, y and z – axis of the system respectively what is the work done by this force in moving the body a distance of 4m along the Z –

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A ball is dropped from the height `h_1` and if rebounces to a height `h_2`. Find the value of coefficient of

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State and prove work energy theorem

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An object of mass 0.4kg moving with a velocity of 4m/s collides with another object of mass 0.6kg moving in same direction with a velocity of 2m/s. If the collision is perfectly inelastic, what is the loss of K.E. due to

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Prove that in an elastic collision in one dimension the relative velocity of approach before impact is equal to the relative velocity of separation after

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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