Home
Class 12
PHYSICS
A cannon of mass 150 kg shot a cannon ba...

A cannon of mass 150 kg shot a cannon ball of 1.5 kg which goes with a velocity of 60 m/s. The cannon will 'recoil with a speed of

A

10.5 m/s

B

6 m/s

C

0.6 m/s

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
From law of conservation of momentum,
`150 xxu +15xx60 =0`
`implies 150u + 90 = 0`
`u = (-90)/150 = -0.6` m/s
Negative sign shows the opposite direction of motion of cannon from that of cannon ball.s motion of direction.
Promotional Banner

Similar Questions

Explore conceptually related problems

A body of mass 30kg has a momentum of 150kg m//s . What is the velocity?

A bullet of mass 50 gram is fired from a 5 kg gun with a velocity of 1 km/s . the speed of recoil of the gun is

A cannon of mass 100 kg is kept on a frictionless floor. If a cannon ball of mass 1 kg is fired from it with a speed of 200 m/s. With what velocity the cannon will move ?

A cannon of mass 100 kg is kept on a frictionless floor. If a cannon ball of mass 1 kg is fired from it with a speed of 200 m/s. With what velocity the cannon will move?

A bullet of mass 10 g is fired from a gun of mass 1 kg with recoil velocity of gun 5 m/s. The muzzle velocity will be

From a rifle of mass 4kg , a bullet of mass 50kg is fired with an initial velocity of 35m//s . Calculate the initial recoil velocity of the rifle.

A 10 gram bullet is shot from a 2 kg gun with a velocity of 400 m//s . What is the speed of recoil of the gun ?

A ball of mass 1 kg strink a heavy platform, elastically, moving upwards with a velocity of 5 m//s . The speed of the ball just begore the collision is 10 m//s downwards. Then the impulse imparted by the platform on the ball is :-