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A 75 kg water skier is being pulled by a horizontal force of 495 N and has an acceleration of 2.0 m/s2. Assuming that the total resistive force exerted on the skier by the water and the wind is constant, what force is needed to pull the skier at a constant velocity?

I tried doing this to solve the problem:

F=ma

F=75kg x 2.0= 150N

Then I added 150 and 495 to get 645 N but this is not the right answer.

Can someone please tell me what I did wrong?

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# Physics Homework Problem-Stuck?

**Physics Forums | Science Articles, Homework Help, Discussion**