A body of mass of 2kg , initially moving with a velocity of 10m/s collides with another body of mass 5kg at rest . After collision velocity of first body becomes 1m/s . Calculate the velocity of second body.
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m₁ = 2kg u₁ = 10m/s v₁= 1m/s
m₂ = 5kg u₂ = 0m/s v₂ = ?
m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
[2×10] + [5×0] = [2×1] + [5×v]
20 + 0 = 2 + 5v
20 = 2+5v
20-2 = 5v
18 = 5v
18/5 = v
3.6 = v
∴ Velocity(v₂) of the second body = 3.6m/s
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