Home
Class 12
PHYSICS
In CID serial (on TV), Abhijeet fires a ...

In CID serial (on TV), Abhijeet fires a bullet of mass 100 g with a speed of `100ms^(-1)` on a soft plywood of thickness 4 cm the bullet emerges with `10%` of its initial KE. Find the emergent speed of the bullet.

Text Solution

Verified by Experts

`"Initial KE of the bullet "=(1)/(2)m u^(2)=(1)/(2)xx(100)/(1000)xx100xx100=500 J`
`"Final KE of the bullet "=(10)/(100)xx500=50J`
Let emergent speed of the bullet be `v, (1)/(2)mv^(2)=50`
`rArr v=sqrt((2xx50)/((100)/(1000)))=31.6ms^(-1)`
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE ENGLISH|Exercise IILUSTRATION|2 Videos

  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE ENGLISH|Exercise TRY YOURSELF|95 Videos

  • WAVES

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT ( SECTION-D ( Assertion - Reason Type Questions ))|12 Videos

Similar Questions

Explore conceptually related problems

In a ballistics demonstration, a police officer fires a bullet mass 50.0g with speed 200ms^(-1) on soft plywood of thickness 2.00cm. The bullet emerges only with 10% of its initial kinetic energy. What is the emergent speed of the bullet ?

In a ballistics demonstration, a police officer fires a bullet mass 50.0g with speed 200ms^(-1) on soft plywood of thickness 2.00cm. The bullet emerges only with 10% of its initial kinetic energy. What is the emergent speed of the bullet ?

In a ballistics demonstration, a police officer fires a bullet mass 50.0g with speed 200ms^(-1) on soft plywood of thickness 2.00cm. The bullet emerges only with 10% of its initial kinetic energy. What is the emergent speed of the bullet ?

A bullet of mass 200 g hits a block of thickness 6 cm with a speed of 100ms^(-1). It emerges with 10% of its initial KE. Find its emergent speed

A bullet of mass 50 g enters a block of thickness t with speed of 500 ms^-1 . It emerges with 4% of its initial kinetic energy. The emergent speed is

A bullet of mass 0.1 kg is fired with a speed of 100 m//sec , the mass of gun is 50 kg . The velocity of recoil is

A bullet of mass 0.1 kg is fired with a speed of 100 m//sec , the mass of gun is 50 kg . The velocity of recoil is

A bullet of mass 40 g moving with a speed of 90 ms ^(-1) enters a heavy wooden block and is stopped after a distance of 60 cm . The average resistive force exerted by the block on the bullet is :

A bullet of mass 40g moving with a speed of 90ms^(-1) enters a heavy wooden block and is stopped after a direction of 60cm. The average resistive force exered by the block on the bullet is

A bullet of mass 0.005 kg moving with a speed of 200 ms^(-1) enters a heavy wooden block and is stopped after a distance of 50 cm. What is the average force exerted by the block on the bullet?