Question

Q/1) A girl is carrying a school bag of 3 kg mass on her back and moves 200m on a leveled
road. The work done against the gravitational force will be (g=10 ms )

a) 6 x 100)
b) 6 ]
c) 0.6)
d) None of these​

Answer 1

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.

Hope it helps