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**1. Homework Statement**

A student kicks a puck with initial speed [itex] v_0 [/itex] so that it slides straight up a plane that is inclined at an angle [itex] \theta [/itex] above the horizontal. the incline has a coefficient of friction (both static and kinetic) of [itex] \mu [/itex]

Write down Newton's second law for the puck and solve it to give it's position as a function of time.

2. Homework Equations

2. Homework Equations

[itex] F=m\ddot r [/itex]

## The Attempt at a Solution

idk why im having such a hard time with this. imagine pucked is kicked diagonally up and to the right. that incline will be the positive x axis with angle [itex] \theta [/itex] to the horizontal.

forces

1. friction: -x direction

2. normal: positive y axis

3. gravity: straight down(component of x and y)

4. [itex] v_0 [/itex]: positive x direction

[itex] F_x=m\ddot r [/itex]

[itex] \vec F_g \sin\theta + v_0 -\mu_x = m\ddot x [/itex]

[itex] F_y=0 [/itex]

[itex] \vec N - \mu_y + \vec F_g\cos\theta=0 [/itex]

thats as far as ive gotten. are these equations correctly written?

thanks