In earlier days, horses pulled barges down canals in the manner
shown below. Suppose that the horse pulls on the rope with a force
of 7900 N at an angle of 18 to the direction of motion of the
barge, which is headed straight along the positive direction of an
x axis. The mass of the barge is 9100 kg, and its acceleration is
0.10 m/s2. What are the magnitude and the direction of the force on
the barge from the water? magnitude N direction (counterclockwise
from the +x axis is positive)
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