What is the work done by a girl against the gravitational force carrying a school bag of mass 3 kg on a levelled road?
Answers
Answered by
1
Explanation:
The work done against gravity is zero as she is moving forward not upward so she overcomes the frictional force not the gravitational force. Normal work done is 6000j but work against gravity is zero
Answered by
4
Explanation:
w=FS cos x°
= (mg cos 90°) S
= 0(S)
= 0 J
work done by the girl is 0J .
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