A 20 g bullet moving at 300 m/s stops after penetrating 2 cm of bone. Calculate the average force exerted by the bullet .

A 40gm of bullet moving at 250ms^(-1) stops after penetrating 20cm of wood. Calculate the average force by the bullet. ?

A bullet of mass 30 g moving with a speed of 500 ms^(-1) pentrates 10 cm into a fixed target. Calculate the average force exerted by target on the bullet.

A bullet moving at 250 m/s penetrates 5 cm into at tree limb before comign to rest. Assuming that the force exerted by the tree limbis uniform, find its magnitude. Mass of the bulet is 10 g.

During a heavy rain hailstones of average size 1.0 cm in diameter fall with an average speed of 20 m/s. Suppose 2000 hailstones strike every square meter of a 10mxx10m roof perpendicularly in one second and assume that the hailstones do not rebound. Calculate the average force exerted by the falling hailstones on the roof. Density of a hailstone is 900 kg/m^3

A body of mass 100 kg is moving with an acceleration of 50 cm s^(-2) . Calculate the force experienced by it.

A ball of mass 150g moving with a velocity of 15 ms^(-1) brought to rest by a player in 0.05 s calculate the impulse and the average forfe exerted by the playeer

A bullet is fired normally on an immovable wooden plank of thickness 2 m. It loses 20% of its kinetic energy in penetrating a thickness 0.2 m of the plank. The distance penetrated by the bullet inside the wooden plank is

A glass full of water has a bottom of area 20 cm^(2) , top of area 20 cm , height 20 cm and volume half a litre. Find the force exerted by the water on the bottom. Atmospheric pressure = 1.0 xx 10^(5) N//m^(2) . Density of water = 1000 kg//m^(-3) and g = 10 m//s^(2)