Tower 300m above the ground dropped A 1kg Hammer.how much potential energy does it have the instant it is dropped.How much kinetic energy does it have the instant right before it hits the ground.how much potential energy does it have once it hits?
1 Answer
While,solving this problem,we need a reference level,i.e where the potential energy is zero.
Here, we consider potential energy to be zero,so at
Now,while sitting on top of the
As,it then fell on the ground only due to the effect of gravity,we can say total energy will be conserved during this process,
So,we cans write,
Total energy on top of the tower = Total energy while touching the ground
So,