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Unit 3: How do fields explain motion and electricity?

Quick questions on Projectile motion in two dimensions: VCE Physics Unit 3

5short 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 horizontal motion?
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No horizontal force acts (air resistance ignored), so horizontal velocity is constant.
What is air resistance (qualitative)?
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Air resistance (drag) acts opposite to the velocity vector at every instant and increases with speed (roughly Fdrag∝v2F_{drag} \propto v^2). Its effects on a projectile:
What is q1?
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Explain why horizontal and vertical motions of a projectile can be treated separately. [2 marks]
What is q2?
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A ball is projected horizontally at 1515 m s−1^{-1} from a 2020 m cliff. Calculate (a) the time to ground, and (b) the horizontal range. [4 marks]
What is q3?
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Refer to the MCG cricket six. (a) Calculate maximum height for u=35u = 35 m s−1^{-1} at 35∘35^\circ. (b) Determine total flight time.

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