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ICSE Class 10 Answered

A body of mass 500g moving with 10ms^-1, increases to 20ms^-1 when acted upon a force.Find (i) the chane on Kinetic Energy (ii) the work done by the foorce (iii) name the theorem based on the same
Asked by rsankit1221 | 11 Jul, 2019, 09:35: PM
answered-by-expert Expert Answer
Change in kintic energy = (1/2)mvf2 - (1/2)mvi2 = (1/2)×0.5×( 202 - 102 ) = 300 J
 
Workdone by the force = 300 J
 
Theorem used  is " Work-Energy Theorem "
Answered by Thiyagarajan K | 11 Jul, 2019, 10:33: PM

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