Question

a bag of wheat weighs 50 kg to what height should it be raised so that P.E. is 9800 J.​

Answer 1

Answer:

19.6m

Explanation:P.E= Mgh

p.e=9800j

m=50kg

g=10m/s

h=?

therefore

h=p.e/mg

9800/50*10

9800/500=19.6m

Answer 2

Answer:

20m

Explanation:

1. p.e=mgh
2. pe=9800j  m=50kg take g=9.8 so it is easy to cancel

9800=50x9.8xh

h=9800/9.8x50

h=20m