A raised hammer possesses
K.E. only
gravitational P.E.
electrical energy
sound energy
Thus, a raised hammer possesses gravitational potential energy (P.E.).
Hence, option (B) is correct.
A hammer of mass 500 g, moving at 50 m s−1, strikes a nail. The nail stops the hammer in a very short time of 0.01 s. What is the force of the nail on the hammer?