Answers

2016-03-16T23:13:12+05:30
Potential energy or work done = 148 J
Mass=500 g=500/1000=0.5 kg
g =10 m/s2

P.E.=148 J
mgh=148 
(0.5)(10)h=148
5h=148
h=148/5
h=29.6 m
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2016-03-18T18:10:09+05:30
Work done = mgh
energy = mgh
148j =500 * 10 * h
148/5000= h
0.0296 meters=h

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