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Q.

A car is moving with a speed of 30 m/s on a circular path of radius 500m. Its speed is increasing at the rate of 2m/s2. The acceleration of the car is

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a

1.8m/s2

b

2.7m/s2

c

2m/s2

d

9.8m/s2

answer is D.

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Detailed Solution

a=aT2+aV2=22+9005002=4+8125=18125=7.29=2.7m/s2

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