ch05-p048 - 48. The direction of motion (the direction of...

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respectively. Plugging in a = 0.12 m/s 2 and m = 9500 kg, we obtain F x = 6.4 × 10 3 N and F y = 2.4 × 10 3 N. The magnitude of the force of the water is therefore FF F xy water N. =+ = × 22 3 68 10 . (b) Its angle measured from ˆ i + is either 1 tan 21 or201 . y x F F §· =+ ° ° ¨¸ ©¹ The signs of the components indicate the latter is correct, so G F water is at 201 ° measured counterclockwise from the line of motion (+ x axis). 48. The direction of motion (the direction of the barge’s acceleration) is
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