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VICPhysicsQuick questions

Unit 2: How does physics help us to understand the world?

Quick questions on Collisions and conservation of momentum (VCE Physics Unit 2)

3short 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 is q1?
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State the principle of conservation of momentum. [2 marks]
What is q2?
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A 15001500 kg car travelling at 2020 m s1^{-1} east collides head-on with a 10001000 kg car travelling at 1515 m s1^{-1} west. After collision the wreckage moves together. Calculate the final velocity and identify whether the collision is elastic.
What is q3?
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Refer to the Spencer Street shunt. (a) Calculate the joined-wagon velocity. (b) Determine the kinetic energy lost.

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