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Q.

A car is moving with a speed of 30ms-1 on a circular path of constant radius 500m. If its speed is increasing at the rate of 2 ms-2, the net acceleration of the car is __________ms-2

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answer is 2.7.

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Detailed Solution

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V=30m/s

r=500m at=2m/s2 

anet =ac2+at 2

anet =v2r2+(2)2⇒anet =952+(2)2⇒anet =2.7m/S2

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