Question

A billboard that stands 30 m above the ground has a gravitational potential energy of 175000 j. What is its mass

Answer 1

595

Step-by-step explanation:

175000 ÷ (9.8 × 30) =595._____

when doing this problem, do not forget the parentheses.

Answer 2

Potential energy (PEI due to gravity = mgh

Where, m= mass of the billboard, g=gravitational acceleration (9.81 m/s^2), h = height

Therefore,
m= PE/(gh) = 175000/(9.81*30) = 594.63 kg