Answer:
Use F = m*a
Explanation:
If you are given the mass of the two different bodies, you could rearrange these equations, plug in the mass of the unknown body to find the unknown force
Work, scientifically speaking, is done when a force is applied to an object which consequently moves the object at a certain direction. Work in formula, is force multiplied with distance.
W = F x d
Thermal energy, radiant energy