Question

If we increase the speed of an object, kinetic energy will :

• A. increase
• B. decrease
• C. Increase and then decrease
• D. decrease and then increase

Answer 1

The correct option is A

increase

K.E $=\frac{1}{2}m{v}^2$

where $m$ is the mass of the body and $v$ is the speed of the body.

Here, K.E. is directly proportional to the square of the speed of the object.

So if we increase the speed, K.E. will increase.