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A train $A$ runs from east to west and another train $B$ of the same mass runs from west to east at the same speed along the equator. $A$ presses the track with a force $F_{1}$ and $B$ presses the track with a force $F_{2}$ . Thus

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Important Questions on Circular Motion

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 48

A cyclist is moving on a circular track of radius

80 m

with a velocity of

72 km {hr}^{- 1}

. He has to lean from the vertical approximately through an angle,

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 49

A car of mass

m

is taking a circular tum of radius

r

on a fictional level road with a speed

v

. In order that the car does not skid

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 50

A car travels at constant speed on a circular road on level ground. The figure shown $F_{air}$ is the force of air resistance on the car. Which of the other forces best represents the horizontal force of the road on the car's tires?

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 51

A mass is supported on a frictionless horizontal surface. It is attached to a string and rotates about a fixed centre at an angular velocity

ω_{0}

. If the length of the string and angular velocity both are doubled, the tension in the string which was initially

T_{0}

is now

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 52

Two masses

M

and

m

are attached to a vertical axis by weightless threads of combined length

ℓ

. They are set in rotational motion in a horizontal plane about this axis with constant angular velocity

ω

. If the tensions in the threads are the same during motion, the distance of

M

from the axis is,

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 53

A stone tied to the end of a string of

1 m

long is whirled in a horizontal circle with a constant speed. If the stone makes

22

revolutions in

44

seconds, what is the magnitude and direction of acceleration of the stone?

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 54

The minimum velocity

(

m s^{- 1})

with which a car driver must traverse a flat curve of the radius

150 m

with a coefficient of friction

0.6

to avoid skidding is

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 55

A cylindrical vessel partially filled with water is rotated about its vertical central axis. Its surface will,

A train A runs from east to west and another train B of the same mass runs from west to east at the same speed along the equator. A presses the track with a force F1 and B presses the track with a force F2 . Thus

Important Questions on Circular Motion

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A train $A$ runs from east to west and another train $B$ of the same mass runs from west to east at the same speed along the equator. $A$ presses the track with a force $F_{1}$ and $B$ presses the track with a force $F_{2}$ . Thus