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A 1 kg mass is sliding along a frictionless surface at plus 6 ms and collides with another object mass equals 3 kg at rest The collision is perfectly inelastic What is the velocity of the 1kg obj?
Wiki User
∙ 13y ago
In a perfectly inelastic collision, the two objects stick together and the momentum is conserved. Once the objects stick together, they both have the same velocity.
p = mv
where p is the momentum
conservation of momentum for perfectly inelastic collision:
m1v1i + m2v2i = (m1 + m2)vf
(1kg)(6m/s) + (3kg)(0m/s) = (1 kg + 3kg)vf
6 kg·m/s = (4kg) vf
vf = v1f = v2f = 1.5 m/s
Wiki User
∙ 13y ago
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