Q.

A circular road of radius r is banked for a speed v=40km/hr . A car of mass attempts to go on the circular road. The friction coefficient between the tyre and the road is negligible              

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a

If the car turns at the correct speed of 40km/hr , the force by the road on the car is greater than mg aswell as greater thanmv22

b

The car cannot make a turn without skidding

c

If the car turns at the speed of 40km/hr , the force by the road on the car is equal tomv2r

d

If the car turns at a speed less than 40km/hr , it will slip down

answer is B.

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Detailed Solution

According to concept if the car turns at a speed less than 40km/hr, it slips down
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