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A block of mass m is suspended by a light thread from an elevator. The elevator is accelerating upward with uniform acceleration a. The work done by tension on the block during t seconds is (u=0):

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Important Questions on Statics

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Mathematics>Statics and Dynamics>Statics>Basics of Statics
If you apply the force along the right, the friction acts along the ______ direction.
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
Why do we slip on a wet floor?
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
Tyres and soles of shoes wear out because of friction.
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
Muscular force is?
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
What is friction?
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
What makes it hard to slide heavy objects across the floor?
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
What do you understand by electricity at rest?
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
Diamond is a _____.
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
What is frictional force? What are its advantages and disadvantages?
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
Electrostatic force makes it possible for us to walk.
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
Contact force is also called as?
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
The force exerted by a charged body on another charged or uncharged body is known as?
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
Differentiate between muscular force and elastic force.
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
Friction opposes the relative motion
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
Although leather is made of animal skin, it does not decay because _____.
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
List any two advantages and two disadvantages of friction.
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Mathematics>Statics and Dynamics>Statics>Basics of Statics

Plastic boxes can be used for storing food materials because plastic is:

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Mathematics>Statics and Dynamics>Statics>Basics of Statics
The use of material depends on its_____.
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
Friction causes no damage to tyres, soles of shoes, or machine parts.
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Mathematics>Statics and Dynamics>Statics>Basics of Statics
Force of gravity is?