(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The ball launcher in a pinball machine has a spring that

has a force constant of 1.20 N/cm The surface

on which the ball moves is inclined 10.0° with respect

to the horizontal. If the spring is initially compressed

5.00 cm, find the launching speed of a 100-g ball when the

plunger is released. Friction and the mass of the plunger negligible

2. Relevant equations

Ki + Ws + Wg = Kf

3. The attempt at a solution

W = integral kx

but i don't understand where gravity comes into play. I'm trying to understand the concept, the solution manual works it out as 1.68 m/s and they use cos 100 don't understand that either

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Incline Problem with spring

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