Question

a body of mass 0.5 kg is moving with a speed of 20m/s. find the kinetic energy?​

Answer 1

Answer:

$\bold 1\bold 0\bold 0 \bold J$

Explanation:

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

Where:

• KE = Kinetic Energy
• m = Mass of a body
• v = Velocity of a body

$\implies KE = \frac{1}{2} 0.5 *20^{2}$

$\implies KE = \frac{1}{2} 0.5 * 400$

$\implies KE = 0.5 * 200 = 100J$