How is it able to affect the horizontal motion of the car

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An open-topped freight car with mass 24000 is coasting without friction along a level track. It is raining very hard, and the rain is falling vertically downward. Originally, the car is empty and moving with a speed of 3.50 m/s. I already found that V=3.23 m/s

Since the rain is falling downward, how is it able to affect the horizontal motion of the car?

Reference no: EM13495199

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