[" 17) A bullet going with speed "350m/s" enters a concrete wall "],[" and penetrates a distance of "5*0cm" before coming to "],[" rest.Find the deceleration: "]

A bullet going with speed 350 m/s enters in a concrete wall and penetrates a distance of 5 cm before coming to rest . Find the deceleration ?

A bullet going with speed 350 m/s enters concrete wall and penetrates a distance of 5.0 cm before coming to rest. Find the deceleration.

A bullet going with speed 350 m/s enters concrete wall and penetrates a distance of 5.0 cm before coming to rest. Find the deceleration.

A bullet fired horizontally with a speed of 400m/sec. It strikes a wooden block of mass 5kg initially at rest placed on a horizontal floor as shown in the figure.It emerges with a speed of 200m/sec and the block slides a distance 20cm before coming to rest.Find the coefficient of friction between block and the surface.Mass of bullet is 20g . (take g=10 m/s^(2) )