11. Two bodies of mass 1 kg and 2 kg respectively moving in the directions opposite to each other with a speed 5 m/s collide. Calculate the total momentum of the system before collision. (Ans. - 4 kg m/s)
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Answers & Comments
Given
Mass of the first body, m1
=
1 kg
Initial velocity of the both the bodies, V1 = 5ms 1
Mass of the second body, m2
2kg
Total momentum of the bodies before collision will be
M1v1 + M₂ V1 = 1(5) + 2(-5) = = -5kgms-¹ -1
The bodies will move in the direction of the second body.
total momentum before collision-5kgms ¹in the direction of the second
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