A pile driver drivers posts into the groubd the by repeatedly dropping a heavy object on then .Assume the object is dropped from the same height each time .By what factor does the energy of th pile driver - Earth systen change when the mass of the object being droped is bouled ?

Options

A. `(1)/(2)`
B. `1:`The energy of the same
C. `2`
D. `4`

Answer

C

Explanation

Gravitational energy is proporional to the mass of the object as the Earth's field.