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A cyclist moves in a circular track of radius 100m. If the coefficient of friction is 0.2, then the maximum speed with which the cyclist can take a turn without leaning inwards, is-

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Important Questions on Circular Motion and Gravitation

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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track

Which among the following is the correct statement?
A. When an object is thrown upwards, then in any case whether going upwards or coming downwards its speed will remain the same. 
B. The weight of any object cannot be zero. 
 

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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
If the velocity of a body is doubled its momentum _____.
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
A force may change ___ of an object. 
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
If two forces 10N and 5N are applied on an object in the same direction, then what will be the total force applied on the object? 
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
What is the rate of doing work?
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
Odometer is used to measure _______:
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
A body of mass 8 kg is moving with a velocity of 4 m/s, find the momentum.
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
When a car starts suddenly from rest, the people are sitting inside the car more backward. This event is an example of:
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
After the explosion of a shell, many pieces fly off in different directions. In such a case, what is conserved? 
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
Which of the following is the kinetic energy? 
a. bullet from the gun.
b. a railway engine at a fast speed.
c. the motion of an ordinary pendulum. 
 
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
How much force will be used to displace an object of 60kg to a distance of 4m? 
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
The angle between displacement and force applied when no work is done is:
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
_____ is caused due to irregularities between two surfaces.
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
For an object, potential energy at a height is known as _____.
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
______ is caused due to irregularities between two surfaces:
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
If a girl weighing 40N climbs up a rope with the force of 160W for 20seconds, then what height will she climb? 
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
As long as an unbalanced force is applied to a body, its continues to change continuously:

 

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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track

What is the energy possessed by a body due to its motion is called?

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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track
A body rolling down on a hill has _____:
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Physics>Mechanics- 2>Circular Motion and Gravitation>Motion in a Horizontal Circular Track

A particle in the medium completes 40 vibrations in 2.5 s. The frequency of the wave is ____: