Question

1 point Two objects A & B 1 kg and 5 kg respectively speed 10 m/s and zero m/s. After collision they move together in the same direction. The combined speed is​

Answer 1

Answer:

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Explanation:

Given : m

1

=m

2

=1.5 kg

u

1

=2.5 ms

−1

u

2

=2.5 ms

−1

Total mass of the combined system, M=m

1

+m

2

=2×1.5=3kg

Let the velocity of the combined system after the collision be v

Applying conservation of momentum before and after the collision :

m

1

u

1

−m

2

u

2

=Mv

1.5×2.5−1.5×2.5=3v

⟹v=0.

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