A toy gun is pointed toward the sky. A Styrofoam ball of mass 10g is at rest against a spring compressed 2cm. The spring is released causing the ball to move upward through the air to a max height of 1m. The air exerts a frictional force of 0.35N on the ball. What is the spring constant(k) of the spring? (Answer: 2240N/m)
The Attempt at a Solution
I revised the equation as:
I took out velocity since it isn't offered in the problem.
I converted g to kg and cm to m. Then I tried to solve for k.
So... I don't know exactly what I did wrong here. I thought that I was on the right path.