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Newtonian Mechanics
Quick questions on Conservation of linear momentum explained: H2 Physics Newtonian Mechanics
6short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are applying it to collisions?Show answer
For a one-dimensional collision between masses and :
What are explosions?Show answer
An explosion is the reverse of a collision: a body at rest (zero total momentum) breaks into pieces whose momenta must sum to zero. The fragments move in opposite directions with equal and opposite momenta. This is the same principle that propels a recoiling gun and a launching rocket.
What is the elastic test for relative speed?Show answer
For a one-dimensional elastic collision, a useful result is that the relative speed of approach equals the relative speed of separation:
What is q1?Show answer
State the principle of conservation of linear momentum and the condition under which it applies. [2 marks]
What is q2?Show answer
A object at collides with a object at and they stick together. Find their common velocity. [2 marks]
What is q3?Show answer
Explain how you would determine whether a given collision is elastic or inelastic. [3 marks]
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