A bullet of mass `10 g` moving horizontally with a speed of `400 m//s` a block of mass `390 g` and remains in it. The block slides `10 m` on rough surface before coming to rest. The friction coefficient is

A bullet of mass 20 g travelling horizontally with a speed of 500 m/s passes through a wooden block of mass 10.0 kg initially at rest on a level surface. The bulet emerges with speed of 100 m/s and the block slides 20 cm on the surface before coming to rest. Find the friction cioefficient between the block and the surface figure.

A bullet of mass 20 g travelling horizontally with a speed of 500 m/s passes through a wooden block of mass 10.0 kg initially at rest on a level surface. The bulet emerges with speed of 100 m/s and the block slides 20 cm on the surface before coming to rest. Find the friction cioefficient between the block and the surface figure.

A bullet of mass 20 g travelling horizontally with a speed of 500 m/s passes through a wooden block of mass 10.0 kg initially at rest on a level surface. The bulet emerges with speed of 100 m/s and the block slides 20 cm on the surface before coming to rest. Find the friction cioefficient between the block and the surface figure.

A bullet of mass 20 g moving horizontally at a speed of 300 m/s is fired into a wooden block of mass 500 g suspended by a long string. The bullet crosses the block and emerges on the other side. If the centre of mass of the block rises through a height of 20.0 cm, find the speed of the bullet as it emerges from the block.

A bullet of mass 10 g travelling horizontally with a velocity of 300 m/s strikes a block of wood of mass 290 g which rests on a rough horizontal floor. After impact the block and the bullet move together and come to rest when the block has travelled a distance of 15 m. The coefficient of friction between the block and the floor will be - (Duration of impact is very short)

A body of mass 10 kg moves on rough horizontal surface with initial velocity 10m/s and travels 500m before coming to rest. The coefficient of friction is

A body of mass 10 kg moves on rough horizontal surface with initial velocity 10m/s and travels 500m before coming to rest. The coefficient of friction is

A bullet of mass 10gm moving with a horizontal velocity 100m//s passes through a wooden block of mass 100gm . The block is resting on a smooth horizontal floor. After passing through the block the velocity of the bullet is 10m//s the velocity of the emerging bullet with respect to the block is .