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Circular Motion Centre Of Mass QUESTIONS AND ANSWERS

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