Question

What is the kinetic energy of a 50-kg child running to catch the school bus at 2 m/s

Answer 1

100 J

Explanation:

The formula for kinetic energy is as follows:

`\boxed{KE= (1)/(2) mv²}`

where

KE= kinetic energy (J)

m= mass (kg)

v= velocity (m/s)

Given: m= 50 kg, v= 2 m/s

Substituting the given information into the formula:

KE

= ½(50)(2²)

= ½(50)(4)

= 100 J