Question

A bullet of mass 40g is moving with a speed of 200m/s. What is the kinetic energy of the bullet?​

Answer 1

800KJ

Step-by-step explanation:

mass =40gm=.040kg

velocity=200m/s

kinetic energy =1/2mv^2

=1/2 ×.040×200×200

=800KJ

Answer 2

Given:

Mass of the bullet = 40 g = 0.040 Kg

Velocity of the bullet = 200 m/s

To Find:

The kinetic energy of the bullet?

Solution:

Kinetic energy = 1/2× m × v²

= 1/2 × 0.040 × 200 × 200

= 800 KJ.