Trigonometry — Unit Circle Mock Tests

A particle moves from point (1, 2) to point (4, 6) under a force F = (2i + 3j) N. The work done is:

A body of mass 1 kg falls freely from a height of 20 m. Its kinetic energy just before hitting the ground is: (Take g = 10 m/s²)

A particle of mass 2 kg moves in a straight line with velocity v = 2t³ m/s, where t is in seconds. The power delivered to the particle by the net force at t = 2 s is:

A body of mass 2 kg has a momentum of 6 kg m/s. Its kinetic energy is:

A car of mass 1000 kg moving with a speed of 30 m/s applies brakes and comes to rest over a distance of 50 m. The magnitude of the braking force is:

A uniform chain of length L and mass M lies on a smooth table. One-third of its length hangs over the edge. The work done to pull the hanging part onto the table is:

A ball of mass m moving with speed v undergoes a one-dimensional elastic collision with a stationary ball of the same mass. After the collision, the first ball: (masses are equal)

A body of mass 2 kg has momentum 6 kg·m/s. Its kinetic energy is: