Overview and Definitions: DGCA Technical General questions

Newton's third law of motion states:

The unit of power is called the:

When considering kinetic energy, which statements are correct? 1 A moving mass can apply a force by being brought to rest. 2 KE is energy possessed by a body due to its motion. 3 If KE is increased, a force must have been applied. 4 KE = 1⁄2mV2 joules.

When considering momentum, which statements are correct? 1 Momentum is the quantity of motion possessed by a body. 2 Momentum is the tendency of a body to continue in motion after being placed in motion. 3 A mass of 2000 kg moving at 55 m/s has 110,000 kg-m/s of momentum. 4 A large mass at 50 m/s will have less momentum than a small mass at 50 m/s.

If a force of 20 newtons moves a mass 5 metres, which statements are correct? 1 The work done is 100 Nm. 2 The work done is 100 joules. 3 The work done is 4 joules. 4 The work done is 0.25 joules.