Quick questions on Motion graphs: position, velocity and acceleration vs time (QCE 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 what the slope and the area under a velocity-time graph represent. [2 marks]

What is q2?

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A car's

v

t

graph shows a constant

20 \text{ m s}^{-1}

for

10 \text{ s}

, then a linear decrease to zero over

8.0 \text{ s}

. Calculate the total displacement and the deceleration phase magnitude. [3 marks]

What is q3?

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A truck on the Bremer bridge has a

v

t

trace from

20 \text{ m s}^{-1}

uniform for

4.0 \text{ s}

, then linear decrease to

4 \text{ m s}^{-1}

over

8.0 \text{ s}

. (a) Sketch the corresponding

a

t

graph. (b) Calculate the total displacement.

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