Question

The kinetic energy of an 80-kg object moving at 10 m/s is : 2000 J
4000 J
6000 J
100 J
1000 J

Answer 1

Answer:

4000 J

Explanation:

The energy possessed by virtue of motion of the body is called its kinetic energy.

When a body is in motion , it has kinetic energy.

Mass of the object, m = 80 kg

velocity of the object, v = 10 m/s

The formula for the kinetic energy is given by

$K=\frac{1}{2}mv^{2}$

K = 0.5 x 80 x 10 x 10

K = 4000 J

Thus, the kinetic energy of the object is 4000 J.