field is force at a distnce = falling under grav ... contact is force at point of contact
Answer:
Potential energy
Explanation:
the SI unit of momentum is :- kg.ms-1
and we know that,
kinetic energy = 1/2 mv2
E=p2/2m
p=(2Em)1/2
so the derived units are (J.kg)1/2
idk
