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प्रश्न
state the unit of energy.
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उत्तर
The SI unit of work is ‘joules’ and the CGS unit is ‘erg’.
संबंधित प्रश्न
Why is a jack screw provided with a long arm?
Define the term energy.
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When do we say that work is done? Write the formula for the work done by a body in moving up against gravity. Give the meaning of each symbol which occurs in it.
Write an expression for the work done against gravity.
Is power a scalar quantity?
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(a) during the motion
(b) at the highest point?
Define Translational motion.
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
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