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A bullet of mass 0.2 kg …

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A bullet of mass 0.2 kg is fired from the gun with the mass of 2 kg if the velocity of the bullet is 150 metre per second then what is the total momentum of the gun and Bullet before firing and after firing .

Posted by Pradeep Mehta 4 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 4 years, 1 month ago

Let the recoil velocity of gun be V.

Mass of gun Mgun=2.0 kg

Mass of bullet Mbullet=0.2 kg

Velocity of bullet Vbullet=150 m/s

Initial momentum of the system Pi=0

Applying the conservation of linear momentum : Pf=Pi

Or M_gunV+M_bulletV_bullet=0

Or 2×V+0.2×150=0

2v +30=0
2v = -30

⟹ V=−15 m/s

0Thank You

ANSWER

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