Question

Why a hammer must be heavier to bury a nail deep?

Answer 1

1. Since we know the momentum of a body is directly proportional to the mass and velocity of the body.
   $$\begin{gathered} p=mv \\ Herep=momentumoftheobject \\ m=massoftheobject\left(kg\right) \\ v=velocityoftheobject\left(m{s}^{-1}\right) \end{gathered}$$
2. A heavy body will have more momentum as compared to a lighter body.
3. A hammer must be heavier to bury a nail deep because a heavy hammer will strike the nail with more momentum and it will transfer more force to the nail.
4. Hence a hammer must be heavier to bury a nail deep.