Physics

Problem

Four students draw different speed–time graphs for a ball they believe is moving in uniform circular motion. Which graph could be correct? a) A sine wave oscillating between

3\,\text{m/s}

and

7\,\text{m/s}

b) A horizontal line at

0\,\text{m/s}

for the entire time c) A horizontal line at

5\,\text{m/s}

starting from

t=0

d) A straight line rising from

0\,\text{m/s}

5\,\text{m/s}

5\,\text{s}

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