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Popular Questions
- A 50kg man with 20kg load on his head climbs up 20 steps of 0.25m height each
- A particle of mass 100g thrown vertically upwards with a speed of 5m/s.
- If force and displacement of particle in direction force are doubled.Work would be
- A body of mass 5 kg is placed at the origin, and can move only on the x-axis. The work done by the force is
- A body moves a distance of 10m along a straight line under the action of a force of 5 N.
- A body of mass 1kg is thrown with a velocity 20m/s.It momentarily comes to rest after attaining a height of 18m.
- A force of 5 N, making an angle Φwith the horizontal, acting on an object displaces it by 0.4m along the horizontal direction.
- A man pushes a wall and fails to displace it.He does
- The work done in pulling up a block of wood weighing 2kN for lenth of 10 m on a smooth plane inclinded at an angle of 15° with ..
- A cord is used to lower vertically a block mass M by a distance d with constant downward acceleration g/4. Work done by the cord o..
- A wire suspended vertically from one of its end
- A force acts on a 30g particle in such a way that the position of the particle as a function of time is given by
- A body moves a distance of 10 m along a straight line under a action of 5 N force. If work done is 25 J, then angle between the fo..
- Two bodies of masses m1 and m2 are acted upon by constant force F for a time t. They start from rest and acquire kinetic energies ..
- A tennis ball is dropped on a horizontal smooth surface. It bounces back to its original position after hitting the surface. The f..
- A particle of mass 4m which is at rest explodes into three fragments. Two of the fragments each of mass m are found to move with a..
- The work done by a force acting on a body is as shown in the graph. The total work done in covering an initial distance of 20 m is
- A body of mass 5 kg is thrown vertically up with a kinetic energy of 490 J. The height at which the kinetic energy of the body bec..
- Stopping distance of a moving vehicle is directly proportional to
- the potential energy of a 1 kg particle free to move along the
- A uniform chain of length 2m is kept on a table that a lenght of 60 m
- a mass of m mk is suspended by a weightless string.
- a particle of mass 0.3 kg is subjected to a force f
- A spring of force constant 800 Nm^-1 has an extension of 5cm. The work done in extending it from 5 cm to 15 cm is
- Two balls of masses 2 g and 6 g are moving with kinetic energy in the ratio of 3 : 1. What is the ratio of their linear momenta?
- A spring of force-constant k is cut into two pieces such that one piece is double the length of the other. Then the long piece wil..
- A tennis ball is dropped on a horizontal smooth surface. It bounces back to its original position after hitting the surface. The f..
- An ideal spring with spring-constant k is hung from the ceiling and a block of mass M is attached to its lower end. The mass is re..
- 4 m^3 of water is to be pumped to a height of 20 m and forced into a reservoir at a pressure of 2 x 10^5 Nm^-2. The work done by t..
- The magnitude of momentum of particle is increased by 100%. The increase in its kinetic energy is
- Potential energy of a particle is to α coordinate by equation x^2 - 2x will be equilibrium at
- A ball of mass m moves with speed v and strikes a wall having infinite mass
- a boll of mass 0.2 kg by hand. if the hand moves
- The energy which an e acquires when accelerated through
- This question has statement 1 and statement 2. Of the four
- The kinetic energy acquired by a body of mass m in travelling some distance s
- The block of mass M moving on the frictionless horizontal surface collides with the string
- A particle of mass 100 g is thrown vertically upwards with a speed of 5 ms^-1. The work done by the force of gravity during the ti..
- A man starts walking from a point on the surface of earth
- The area of the acceleration-displacement curve of a body gives
