parkyun0611 parkyun0611

15-12-2022
Physics

contestada

1. A bullet of mass 0.02-kg is shot horizontally into a wooden log, striking it with a
velocity of 200
a) If it penetrates 4-cm before stopping, what is the stopping
force i.e friction force? (work = change in kinetic energy)
b) What is the acceleration of the bullet while slowing in the log.
c) How long does it take for the bullet to stop?

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