Question

A box with 50 marbles is at a height of 50m .if each marble weight 25kg how much potential energy does the box of marbles have

Answer 1

solution: mass of one marble (m) =25kg

mass of box of 50 marbles (M) = 25×50=1250kg

gravitational potential energy of a system at height(h) 50m(we assume g=10m/s²) =Mgh

putting the values.

1250×10×50=625000J

Answer 2

Answer:

potential energy= mgh

where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.

potential energy= mgh

PE=25*10*50

PE=12500j