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Pachacha [2.7K]

3 years ago

4

When is the zebra in motion?

1 answer:

zavuch27 [327]3 years ago

3 0

The zebra is stationary(not moving) when the gradient of the distance/time graph is zero; between 20 and 40 seconds. The zebra is moving away from the origin when the gradient is positive; between 0 and 20 and 40 and 60 seconds. Average speed is the distance travelled/ time elapsed so the average speed is 280/60 = 4.67 m/s

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Answer:

The coordinates of the point is (0,0.55).

Explanation:

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Second charge $q_{2}=6\times10^{-6}\ C$

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