Question

What is the kinetic energy of a ball with a mass of 0.5 kg and a velocity of 10 m/s? (Formula: KE =mv2)

Answer 1

Given:-

• Mass,m = 0.5 kg

• Velocity,v = 10 m/s

To find out:-

Find the kinetic energy of a ball.

Formula used:-

Kinetic energy = 1/2 × m × v²

Solution:-

We know that,

Kinetic energy = 1/2 × m × v²

★ Substituting the values in the above formula,we get:

Kinetic energy = 1/2 × 0.5 × 10²

Kinetic energy = 1/2 × 5/10 × 100

kinetic energy = 5/10 × 50

Kinetic energy = 5 × 5

Kinetic energy = 25 Joules