Physics, asked by mehak216, 1 year ago

A 5kg mass falls through 400 cm. The work done on it by the earth’s gravitational force is

snehapess: Thanks for marking me.

snehapess: But just for ur info, it is better if u take the value of g as 9.8

snehapess: If the value is alread given, use it.

snehapess: already*

Answers

Answered by snehapess

Let the value of acceleration due to gravity be 10m/s^2(g)

Potential energy = mgh

= 5×10×4(in metres)

= 200J

mehak216: Thanks for trying but maybe its not correct

snehapess: Could I know the mistake?

mehak216: Yes

mehak216: Actually the answer is 196 J

snehapess: But isnt it okay to take the value of g as 10.

mehak216: Maybe its ok

mehak216: But I’m not sure

mehak216: If its right

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