Question

Calculate the kinetic energy of a 71 kg man running at 5 m/s

Answer 1

887.5 J

Step-by-step explanation:

Kinetic energy is the energy gained by a body due to its motion.

Its formula is :-

KE =
`(1)/(2) mv^(2)`

• m = mass
• v = velocity

Values we are given :

• m = 71 kg
• v = 5 m/s

Substituting :

• KE = 1/2 x 71 x 5²
• KE = 35.5 x 25
• KE = 887.5 J