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QUIZ 1:circular Motion(#free Test Series)


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20 Questions MCQ Test Physics chapterwise notes and mocks JEE | QUIZ 1:circular Motion(#free Test Series)

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QUIZ 1:circular Motion(#free Test Series) - Question 1

A body is allowed to slide on a frictional less track from rest under-gravity. The track ends in a circular loop of diameter D. What should be the minimum height of the body in terms of D, so that it may successfully complete the loop?

QUIZ 1:circular Motion(#free Test Series) - Question 2

A body is moving along a circular path with variable speed. It has

QUIZ 1:circular Motion(#free Test Series) - Question 3

A body is traveling in a circle at constant speed. It

QUIZ 1:circular Motion(#free Test Series) - Question 4

A body of mass 100 gram, tied at the end of a string of length 3 m rotates in a vertical circle and is just able to complete the circle. If the tension in the string at its lowest point is 3.7 N, then its angular velocity will be ______ (g = 10 m/s2)

QUIZ 1:circular Motion(#free Test Series) - Question 5

A body of mass 500 gram is rotating in a vertical circle of radius 1 m. What is the difference in its kinetic energies at the top and the bottom of the circle?

QUIZ 1:circular Motion(#free Test Series) - Question 6

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)

QUIZ 1:circular Motion(#free Test Series) - Question 7

A bucket tied at the end of a 1.6 m long string is whirled in a vertical circle with a constant speed. What should be the minimum speed so that the water from the bucket does not spill when the bucket is at the highest position?

QUIZ 1:circular Motion(#free Test Series) - Question 8

A can filled with water is revolved in a vertical circle of radius 4 metre and the water does not fall down. The time period of revolution will be

QUIZ 1:circular Motion(#free Test Series) - Question 9

A car is moving in a circular track of radius 10 metre with a constant speed of 10 m/sec. A plumb bob is suspended from the roof of the car by a light rigid rod of 1 metre long. The angle made by the rod with the track is

QUIZ 1:circular Motion(#free Test Series) - Question 10

A car is moving in horizontal circular track of radius 10 m, with a constant speed of 36 km/hour. A simple pendulum is suspended from the roof of the car. If the length of the simple pendulum is 1 m, what is the angle made by the string with the track?

QUIZ 1:circular Motion(#free Test Series) - Question 11

A car is moving on a circular path and takes a turn. If R1 and R2 are the reactions on the inner and outer wheels respectively, then

QUIZ 1:circular Motion(#free Test Series) - Question 12

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

QUIZ 1:circular Motion(#free Test Series) - Question 13

A car moving on a horizontal road may be thrown out of the road is taking a turn

QUIZ 1:circular Motion(#free Test Series) - Question 14

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

QUIZ 1:circular Motion(#free Test Series) - Question 15

A car of mass 800 kg moves on a circular track of radius 40 m. If the coefficient of friction is 0.5, then maximum velocity with which the car can move is

QUIZ 1:circular Motion(#free Test Series) - Question 16

A car sometimes overturns while taking a turn. When it overturns, it is

QUIZ 1:circular Motion(#free Test Series) - Question 17

A coin kept on a rotating gramophone disc just begins to slip if its centre is at a distance of 8 cm from the centre of the disc. The angular velocity of the gramophone disc is then doubled. Through what distance, the coin should be shifted towards the centre, so that the coin will just slip?

QUIZ 1:circular Motion(#free Test Series) - Question 18

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

QUIZ 1:circular Motion(#free Test Series) - Question 19

A cyclist turns around a curve at 15 miles per hour. If he turns at double the speed, the tendency of overturn is

QUIZ 1:circular Motion(#free Test Series) - Question 20

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 the aeroplane is at highest position (g = 10 m/s2)

Detailed Solution for QUIZ 1:circular Motion(#free Test Series) - Question 20

 

R1 is normal reaction at the lowest position and R2 is normal reaction at the highest position of vertical circle r=200m,m=75kgr=200m,m=75kg ,
υ=360km/h=100m/s
 

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