Question

A bullet of mass 10 g is horizontally fired with a velocity 100 m s-1 from a pistol of mass 2

kg. What is the recoil velocity of the pistol?​

Answer 1

Answer:

11th

Physics

Work, Energy and Power

Collisions in Two Dimensions

A bullet of mass 10 g is fi...

PHYSICS

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

October 15, 2019

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Sarah Manas

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VIDEO EXPLANATION

ANSWER

Conservation of linear momentum gives,

m

1

v

1

+m

2

v

2

=0

m

1

v

1

=−m

2

v

2

v

1

=

m

1

−m

2

v

2

Given, m

1

=10g=(

1000

10

)kg,

m

2

=1 kg,

v

2

=−5m/s

∴v

1

=

10/1000

+1×5

or v

1

=500m/s.

Answer 2

Explanation:

m1v1=m2v2

v1=(0.01×100)/2

v1=0.5 m s-1