Circular Motion MCQs

16. Question

A car of mass 1000 kg moves on a circular road with a speed of 20 m/s. Its direction changes by 90 degree  after traveling 628 m on the road. The centripetal force acting on the car is




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17. Question

A bucket containing water is tied to one end of a rope of length 2.5 m and rotated about the other end in a vertical circle. What should be the minimum velocity of the bucket at the highest point, so that the water in the bucket will not spill? (g = 10 m/s2)




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18. Question

A cyclist goes round a circular path of circumference 343 m in 22 s. The angle made by him, with the vertical is




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19. Question

A cyclist is moving in a circular track of radius 80 m, with a velocity of 36 km/hour. In order to keep his balance, he has to lean inwards from the vertical through an angle . If g = 10m/s2, then is given by



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20. Question

A fighter aeroplane flying in the sky dives with a speed of 360 km/hr in a vertical circle of radius 200 m. Weight of the pilot sitting in it is 75 kg. What will be the value of force with which the pilot presses his seat when theaeroplane is at highest position (g = 10 m/s2)




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