If a 2 kg ball is traveling at a speed of 4 m/s, what is its kinetic energy?

1.2 J

2.4 J

3.8 J

4.16J

Option D is the correct answer.

Explanation:

It is given that a 2 kg ball is traveling at a speed of 4 m/s, so we have to find its kinetic energy.

KE = 1/2 mv²

KE = 1/2 * 2 * (4) ²

KE = 1/2 * 2*16

KE = 16 J

Some information about Kinetic Energy.

Kinetic Energy is the energy an object has because of its motion. It is directly proportional to the velocity of the particle and its mass. Kinetic energy is given by,

KE = ½mv² It occurs due to the motion of the particle. If a particle at rest position, then the kinetic energy will be zero because that particle won't be accelerating.