Work Done by Force: JEE Questions & Solutions

A force F = 2 i + b j + k is applied on a particle and it undergoes a displacement r = i - 2 j - k. What will be the value of b, if the…

A force f = x^2 i + y j + y^2 k acts on a particle in a plane x + y = 10. The work done by this force during a displacement from (0,0) to…

A force F = + x^2 acts on an object in the x-direction. The work done by the force is 5 J when the object is displaced by 1 m. If the…

A block of mass 25 kg is pulled along a horizontal surface by a force at an angle 45^ with the horizontal. The friction coefficient between…

A force (3x^2 + 2x - 5) N displaces a body from x = 2 m to x = 4 m. The work done by this force is:

An object of mass m initially at rest on a smooth horizontal plane starts moving under the action of force F = 2N. In the process of its…

Identify the correct statements from the following:

A small particle moves to position 5 i - 2 j + k from its initial position 2 i + 3 j - 4 k under the action of force 5 i + 2 j + 7 k N. The…

A force F = 5 + 3y^2 acts on a particle in the y-direction, where F is newton and y is in meter. The work done by the force during a…

A force F = (2 + 3x) i acts on a particle in the x-direction where F is in newton and x is in meter. The work done by this force during a…

To maintain a speed of 80 km/h by a bus of mass 500 kg on a plane rough road for 4 km distance, the work done by the engine of the bus will…

A block of mass 10 kg is moving along the x-axis under the action of force F = 5x N. The work done by the force in moving the block from x…