Home
Class 12
PHYSICS
A large block of wood of mass M=5.99 kg ...

A large block of wood of mass M=5.99 kg is hanging from two long massless cords. A bullet of mass m=10 g is fired into the block and gets embedded in it. The (block + bullet) then swing upwards, their centre of mass rising a vertical distance -9.8 cm before the (block+bullet) pendulum comes momentarily to rest at the end of its arc. The speed of the bullet just before collision is : (take `g=9.8 ms^(-2))`

A

`841.4m//s`

B

`831.4m//s`

C

`821.4m//s`

D

`811.4m//s`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

A bullet is fired into a wooden block. If the bullet gets embedded in wooden block, then

A frequently used device to measure the speed of bullets is the ballistic pendulum. It comprises of a heavy block of wood of mass M suspended by two long chords. A bullet of mass m is fired into the block horizontally. The block, with the bullet embedded in it, swings upwards. The centre of mass of the combination rises through a vertical distance h before coming to rest momentarily. In a particular experiment, a bullet of mass 40 gm is fired into a wooden block of mass 10 kg. The block is observed to rise by a height of 20.0 cm. Initial speed of the bullet is