# A ball with a mass of #8 kg# moving at #3 m/s# hits a still ball with a mass of #15 kg#. If the first ball stops moving, how fast is the second ball moving?

The velocity of the second ball after the collision is

We have conservation of momentum

Therefore,

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The linear momentum in a collision always remains conserved irrespective of type of collision elastic or inelastic.

by the conservation of linear momentum, we have

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The second ball will move at a speed of 1.6 m/s.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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