Question

Type the correct answer in the box. Round your answer to the nearest whole number.
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

Answer:

52 kg

Explanation:

PE = mgh

m = PE ÷ gh

m = 4620 ÷ (9.8×8.4 )

m = 4620 × 82.32

m = 56.122

m approx = 56