A bullet moving with speed 150 m/s strikes a tree and penetrates 3.5 cm before stopping. Find the magnitude of its acceleration and the time taken to stop.

A bullet moving with speed 150 m/s strikes a tree and penetrates 3.5 c

1.	A bullet moving with speed 150 m/s strikes a tree and penetrates 3.5 cm before stopping. Find the magnitude of its acceleration and the time taken to stop.
Answer» `32.14xx10^(5)m//s^(2), 4.67xx10^(-4)s` `13.214xx10^(5) m//s^(2), 4.67xx10^(-4)s` `3.214 XX 10^(5) m//s^(2), 4.67xx10^(-4)s` `3.214xx10^(5) m//s^(2), 14.67 xx 10^(-4)s` ANSWER :C