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Sagot :
A. The work increases.
Work=Force*Distance
in this case, the force is the weight since we are moving in an upward direction.
Weight=Mass*Acceleration Due to Gravity
Since Gabriella is carrying a greater mass upward (herself and the two heavy books), her force upward is greater in the second case. Thus, since the distance is the same, the work done by Gabriella is also greater.
Work=Force*Distance
in this case, the force is the weight since we are moving in an upward direction.
Weight=Mass*Acceleration Due to Gravity
Since Gabriella is carrying a greater mass upward (herself and the two heavy books), her force upward is greater in the second case. Thus, since the distance is the same, the work done by Gabriella is also greater.
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