A1.8 kg hammer moving at 6.0 m/s drives a nail 30mm into a board. compute the average resistance of the board on the nail using thework-energy theorem.

F = 1080 N

Explanation:

given,

mass of the hammer = 1.8 kg

velocity of the hammer = 6 m/s

distance into board = 30 mm = 0.03 m

to calculate average resistance force = F

kinetic energy of the hammer is equal to the work done by the hammer

F = 1080 N

hence, the average resistance force is equal to F = 1080 N

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