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Work And Energy Free Doubts and Solutions

CBSE - IX - Physics - Work and Energy

How is potential energy affected when work done by a body and when work done on a body

Asked by saradamahapatra9999 19th February 2019, 10:43 AM
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CBSE - IX - Physics - Work and Energy

A  particle is executing SHM of amplitude 'A'.  The distance of the point from the equilibrium position, at which its potential energy is 25% of its kinetic energy, will be A) A/√2      B) A/√3     C) A/√5    D) A/√7

Asked by Rajendra 2nd January 2019, 8:42 PM
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CBSE - IX - Physics - Work and Energy

what is the difference between volt and watt

Asked by skbl2009 27th April 2016, 8:30 PM
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CBSE - IX - Physics - Work and Energy

what is the cgs unit of work?

Asked by vrushabha2001 31st December 2015, 9:10 PM
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CBSE - IX - Physics - Work and Energy

a body falling from a height of 10m rebounds from a hard floor.It loses 20% of its energy in the impact.What could be the height to which it would rise after the impact

Asked by Ashwnikumar 5th December 2015, 6:35 PM
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CBSE - IX - Physics - Work and Energy

if work AND ENERGY ARE TWO SAME PARAMETER MEASURIN QUANTITY THAN WHY TWO TERMS ARE DEFINED.....
AND IS IT POSSIBLE THAT TOTAL ENERGY OF SYSTEM LESS THAN POTENTIOL ENERGY.

Asked by PRAMOD 1st October 2015, 11:54 AM
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CBSE - IX - Physics - Work and Energy

A block of wood is kept on a table top . The mass of wooden block is 5kg and its dimension are 40cm*25cm*10cm. Find pressure extended

Asked by srivathchava15 14th March 2015, 9:07 PM
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CBSE - IX - Physics - Work and Energy

a ball is dropped from a height of 10m. if the energy of the ball reduces by 40%after striking the ground,how much high can the ball bounce back. (g = 10)

Asked by mansi 28th February 2015, 7:55 PM
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CBSE - IX - Physics - Work and Energy

what is potential energy explain with diagram
 

Asked by taranarora200 7th February 2015, 10:32 PM
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CBSE - IX - Physics - Work and Energy

Why is work a scalar quantity although force and displacement are vector quantities?(Answers apart from work has magnitude but no direction). I want to know why work has no direction.

Asked by Vatsal Sinha 17th December 2014, 8:22 PM
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