A ball with a mass of 3kg is rolling at 8ms and elastically collides with a resting ball with a mass of 4kg. What are the post-collision velocities of the balls?
1 Answer
Jan 5, 2018
The post collision velocities are
Explanation:
In an elastic collision, there is conservation of momentum and conservation of kinetic energies.
Here,
The masses are
and
The initial velocities are
and
Solving for
From
Substituting is
So,
This is the initial conditions.
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