Question

if potential energy of an object dropped from a certain height is 100J, then what should be its kinetic energy at the ground ?

Answer 1

Dear Student ,
When the object is dropped from certain height then its potential energy is converted in to kinetic energy when it just touches the ground .
So here when an object is dropped from certain height then its potential energy is 100 J then its kinetic energy at the ground will be 100 J .
Regards