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.

Potential energy is a stored energy, which  is caused by the gravitational pull of the earth, that is why when you go up the potential energy will increase. to calculate the mass, just substitute the given to the formula and solve for m

PE = m x g x h
4620 = m x 9.8 x 8.4
m = 4620 / ( 9.8 x 8.4)
m = 56.1 kg is thr mass of the man