Question

5. A car is moving with a speed of 30 m/s on a circular
track of radius 500 m. Its speed is increasing at a
rate of 2.0 m/s?. Determine the magnitude of its
acceleration.
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Answer 1

Answer:

Tangential acceleration:at=2m/s2

Centripetal acceleration:ar=rv2=500900=1.8m/s2

∴ Net acceleration22+(1.8)2=2.7m/s2

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