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IIT JEE : Circular Motion Centre Of Mass QUESTIONS AND ANSWERS :: part1 : 6 to 10
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
6.A curved section of a rod is banked for a speed v. If there is no friction between road and tyres of the car, than: |
car is more likely to slip at speeds higher than v than speeds lower than v |
car cannot remain in static equilibrium on the curved section |
car will not slip when moving with speed v |
none of the above |
7.A motor cyclist rides around the well with a round vertical wall and does not fall down while riding because: |
the force of gravity disappears |
he loses weight some how |
he is kept in this path due to the force exerted by surrounding air |
the frictional force of the wall balances his weight |
8.A projectile is projected at an angle 60 degree with horizontal with speed 10 m/s. The minimum radius of curvature of the trajectory described by the projectile is: |
2.55 m |
2 m |
10 m |
none of these |
9.A particle of mass 100 g tied to a string is rotated along a circle of radius 0.5 m. The breaking tension of string is 10N. The maximum speed with which particle can be rotated without breaking the string is: |
10 m/s |
9.8 m/s |
7.7 m/s |
7.07 m/s |
10.When a body moves with constant speed in a circular path, then: |
work done will be zero |
acceleration will be zero |
no force acts on a body |
its velocity remains constant |
More Circular Motion Centre Of Mass QUESTIONS AND ANSWERS available in next pages
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