thanks!
sorry but one more question would a bullet at maximal velocity say 30 m from the bullet tip cause more damage
or a bullet just exiting the gun?
i guess I am asking what is the reference for p initial for the Δp calculation?
what does more damage an object w/ a high acceleration or a greater momentum
i was watching one of my favorite tv shows "Justified" and i started to wonder would a bullet moving at a greater acceleration hence greater force (F=ma) inflict more damage or would a bullet w/ a greater velocity...
the pressure exerted by the wood onto the nail in this case the normal force is increasing?
is that why? was i just overlooking the fact that N is increasing in this case and N ≠ mg
Why is it harder to hammer in a nail the deeper it gets?
Classical physics says
F k or s = μ k or s N
the normal force is constant right? or is the nail's normal force increasing as it enters the piece of wood?
or is it one of those exceptions like why wider tires on snow work...