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प्रश्न
उत्तर
The work done by the gravitational force of the earth on a satellite revolving around the earth is zero because the motion of the satellite is perpendicular to the force at every point.
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संबंधित प्रश्न
Derive a relationship between S.I. and C.C.S. unit of work
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What are the quantities on which the amount of work done depends? How are they related to work?
A car is being driven by a force of 2.5 ✕ 1010 N. Travelling at a constant speed of 5 m/s, it takes 2 minutes to reach a certain place. Calculate the work done.
In which of the following case the work done by a force will be maximum : when the angle between the direction of force and direction of motion is 0° or 90°?
Explain the difference between a uniform linear motion and a uniform circular motion.
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(a) Vertical direction, and
(b) Horizontal direction
Give an example
Chemical energy changes to heat energy.
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A uniform chain of length 2 m is kept on a table such that a length of 60 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg. What is the work done in pulling the entire chain on the table?
