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Grade 10Mechanics

In earlier days, horses pulled barges down canals in the manner shown in Fig. Suppose that the horse pulls a rope that exerts a horizontal force of 7900 N at an angle of 18° to the direction of motion of the barge, which is headed straight along the canal. The mass of the barge is 9500 kg and its acceleration is 0.12 m/s², Calculate the horizontal force exerted by the water on the barge.

Hrishant Goswami

11 Years agoGrade 10

1 Answer

Jitender Pal

11 Years ago

Round off to four significant figures,
P_x = 6373 N
Therefore the magnitude of horizontal force exerted by the water is 6373 N and it acts in a direction opposite to the horizontal motion of barges.

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