CBSE Class 9 Answered
To what height should a box of mass 150 kg be lifted,so that its potential energy may become 7350joules? (g=9.8m/s)
Asked by kripasinghbaghel5 | 27 Dec, 2022, 09:10: PM
Expert Answer
Potential energy U = ( m g h )
where m is mass , g is acceleration due to gravity and h is height
h = U / ( m g ) = 7350 / ( 150 × 9.8 ) = 5 m
Answered by Thiyagarajan K | 27 Dec, 2022, 09:50: PM
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