Question

A women weighting 63 kg eats plum cake whose energy content is 9800 calories if all this energy could be utilized by her she can ascend a height of
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Answer 1

Answer:

She can ascend a height of 66.66 m

Explanation:

According to the problem the weight or mass of the woman ,m = 63 kg

by eating the cakes she gain energy of 9800 calories

As 1 cal = 4.2 J

therefore 9800 cal= 9800 x 4.2 J

Now we know that potential energy gaining= mgh [ where m= mass ,g= acceleration for gravity, h=height]

therefore

mgh=  9800 x 4.2

63 x 9.8 x h= 9800 x 4.2

=> h= 66.66