Question

There are two stones with masses 4kg and 10kg which are at rest . A stone having mass 10 kg moves towards the east with a velocity of 5m/s. Find the velocity of the stone with mass 4 kg with respect to the ground.

Answer 1

Answer:

The velocity of the heavier block (10kg) = 14m/s.

The velocity of COM is given by:

m

1

+m

2

m

1

v

1

+m

2

v

2

=

10+4

10×14+4×0

=10m/s since spring force is an internal force.

Explanation:

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