Question

By how much will the kinetic energy of a body increase if its speed is doubled?

• A. 4 times
• B. 2 times
• C. 8 times
• D. 16 times

Answer 1

The correct option is A 4 times

As kinetic energy is given by, $K.E=\frac{1}{2}m{v}^2$
So, if its speed is doubled the kinetic energy of a body becomes four times.