(adsbygoogle = window.adsbygoogle || []).push({}); 1. A ball is flying through the air, and at a given point in the flight, the ball is submitted to a gravitational force: F(g) = 1,5 N [downwards] and air resistance: F(air) = 0,50 N [32° above the horizontal]. Calculate the net force on the ball.

2. F (nette) = m x a

3. I thought I might have to find the vertical and horizontal components of the air resistance, so I found:

sin32 x 0,5N = 0,26N = x

cos32 x 0,5N = 0,42N = y

I also tried calculating the mass of the ball, in case it might prove useful:

Fg = m x g

1,5N = 9,8m

0,153 kg = m

But after calculating these values, I'm at a loss of what to do next. How do you find out the net force without having the other force on the horizontal axis? How can I use this data to calculate the net force? The answer key in my book says it should be 1,3N [71° under the horizontal], but I have no idea how this answer was achieved. I would be grateful for any help in solving this problem.

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# Homework Help: Forces - Finding Net Force

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