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Area 1: Rotational Motion and Astrophysics

Quick questions on Kinematic relationships: calculus of motion - SQA Advanced Higher Physics

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 what physical quantity the second derivative of displacement with respect to time represents. [1 mark]
What is q2?
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The displacement of an object is s=5t2+2ts = 5t^2 + 2t. Find an expression for its velocity. [2 marks]
What is q3?
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State why the equation s=ut+12at2s = ut + \tfrac{1}{2}at^2 cannot be used when the acceleration varies with time. [1 mark]

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