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Rev. Notes > AS > Dynamics
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Newton's first law of motion Newton's second law of motion Newton's third law of motion
Linear momentum Example1 - Linear momentum Law of conservation of momentum
Elastic collisions Comparison between elastic and inelastic collisions Inelastic collision
Interaction between bodies

Example1 - Linear momentum

A bike with a student on it is initially going 10 m/s to the right. The mass of the student and bike combined is 75 kg. What is the momentum of the student + bike?

This is simply a question that gets us to apply the momentum formula. We know m and v, so calculation is trivial:

p = mv

p= (75 kg)(10 ms-1 right)

p= 750 kg ms-1 towards the right.

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