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CBSE Class 9 Answered

a block is thrown upwards with a kinetic energy of 1J. If it goes up to a maximum height of 1m find the mass of the block
Asked by | 05 Oct, 2012, 09:59: PM
answered-by-expert Expert Answer
using princile of energy conservation initial kinetic energy = final potential energy
 
thus
mgH = 1
m = 1/gH = 1/(10*1) = 0.1 kg
Answered by | 06 Oct, 2012, 10:10: AM

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