Question

Assuming we keep the height constant..
If the mass doubles, the PE will..?
If the mass quarters, the PE will..?
If the mass triples, the PE will..?

Answer 1

As we know PE at height h is equal to magh
PE=mgh
(1) If the mass double than
New mass is 2m
PE=2mgh
It means PE also double
(2) If the mass quarters than
New mass is m/4
PE=mgh/4
It means PE also quarters
(3) If the mass triple than
New mass is 3m
PE=3mgh
It means PE also triple.