Question

a 98 K crate is pushed to the top of a 2.5m ramp, which is inclined at 18 degrees with the horizontal. what is the potential energy of the crate?

Answer 1

mass m=98kg height h=2.5m
potential energy U=mgh
U= 98*2.5*9.8
U= 24010J
U= 24.01 kJ

Answer 2

h = 2.5*sin18.

PE = M*g*h.