Question

(3 points)

Derivation of kinetic energy​

Answer 1

A body of mass m moving with a velocity v has a kinetic enegy E = ½ mv2. Note that kinetic energy is always positive. 

The work done by a body by virtue of its motion is called kinetic energy. 

The energy possessed by a body because of its motion is called its kinetic energy.

Answer 2

$\bold{ANSWER}$

The kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.

Having gained this energyduring its acceleration, the body maintains this kinetic energy unless its speed changes