A bullet of mass 12 g is fired horizontally into a fixed wooden block with a speed of 20m/s. The bullet is brought to rest in the block in 0.1 seconds by a costant resistance. Calculate the

Question

A bullet of mass 12 g is fired horizontally into a fixed wooden block with a speed of 20m/s. The bullet is brought to rest in the block in 0.1 seconds by a costant resistance. Calculate the
(i) magnitude of the resistance
(ii) distance moved by the bullet in the wood.

bobpursley · Accepted Answer

impulse=changemomentum force*.1=.012*20 solve for resistance force. distance: average velocity is 10m/s, in .1 sec distance=avgvelociyt*time=1meter

somay · Answer

great! Thank you bobpursley

Anonymous · Answer

Sorry to ask 20 x0.1 is it not 2