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A steel sphere of mass 100 gm moving wi...

A steel sphere of mass 100 gm moving with a velocity of 4 m/s collides with a dust particle elastically moving in the same direction with a velocity of 1 m/s. The velocity of the dust particle after the collision is (dust partical is of mass neglisiable

A

8 m/s

B

7 m/s

C

6 m/s

D

9 m/s

Text Solution

Verified by Experts

The correct Answer is:
B
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