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vlabodo [156]
3 years ago
15

A runner having mass of 55 kg moving at a speed of 9 m/s rounds a bend with a radius of 18 m. What is the centripetal

Physics
1 answer:
nikklg [1K]3 years ago
7 0

Answer:

centripetal acceleration = 4.5 m/s^2 ; centripetal force = 247.5 N

Explanation:

centripetal acceleration  = v^2 / r = 9^2 / 18 = 4.5 m/s^2

centripetal force = mv^2 / r = 4.5 x 55 = 247.5 N

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Answer:

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Explanation:

Mary's total travel was 250 meters and the elapsed time was 10 minutes, equivalent to 600 seconds.

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t = time = 10 minutes . 60 seconds/minute = 600 seconds

We can obtain now the average speed:

s = average speed = displacement / time = 250 meters / 600 seconds ≅ 0.4167 ≅ 0.42

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