Question

Calculate the man’s mass. (Use PE = m × g × h, where g = 9.8 N/kg.)

A man climbs a wall that has a height of 8.4 meters and gains a potential energy of 4,620 joules. His mass is about
kilograms

Answer 1

mass=56.12kg

Step-by-step explanation:

PE=mgh

4620=m×9.8×8.4

make m subject of the formula...

m =4620/(9.8×8.4)

m=4620/82.32

m=56.12kg