14. A bullet of mass 10 g travelling horizontally with a velocity of 150 m s-l strikes a stationary wooden block and comes to rest
in 0.03 s. Calculate the distance of penetration of the bullet
into the block. Also calculate the magnitude of the force exerted
by the wooden block on the bullet.

2.25 m

50 N

Explanation:

Given :

Initial velocity =U=

Final velocity =v=0

We know that

Putting the value of V,U and t in the previous equation we get

According the second law of motion

Putting the value of U,t and a we get

We know that

it is called kinetic energy

where’s the list ? the question is incomplete