1. The 125 kg cart starts from rest and rolls with negligible friction. It is pulled by two ropes as
shown below to move it 100 m horizontally to the right.
F2
200 N
30.07
300 N
F:
a
Calculate the net work done on the cart.
b. Find the final velocity of the cart.
c.
What is the average power used by the cart if it takes 70 s to move through the 100 m?
Answers: 3
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