A carpenter hammers a nail using a 0.40-kg hammerhead. Part of the nail goes into a board. (a) Estimate the speed of the hammerhead before it hits the nail. (b) Estimate the stopping distance of the hammerhead. (c) Estimate the stopping time interval. (d) Estimate the average force that the hammerhead exerts on the nail.

Question

anonymous · Answer

For (a), estimate first the distance that the hammer swings from rest to hit the nail and how long it takes to actually reach then ail.  Assuming a constant acceleration, this will give you a final velocity.  For (b), estimate how deep the nail goes on each hit (based on your experience).  For (c), this is a kinematics problem based on (a) and (b) assuming constant acceleration, and (d) is an calculation based on the given mass and your answer to (c).