Question

A mass of 8 kg moves at a rate of 14.3 m/sec. what is the KE developed by the mass?

Answer 1

Kinetic energy is the energy associated with the motion of an object. It's a scalar quantity, there is no direction associated with KE and it has no components. $KE = \frac{mv ^{2} }{2} = \frac{8 *14.3 ^{2} }{2} = 4 *204.49 = 817.96J$. Therefore Kinetic energy is 817.96J.