Finding acceleration given tension on a ramp?

[jf379]

I have no idea how to solve this problem & I need help. Please!

5) A 40.0 kg wagon is towed up a hill inclined at 18.5° with respect to the horizontal. The tow rope is parallel to the incline and has a tension of 140 N in it. Assume that the wagon starts from rest at the bottom of the hill and neglect friction. How fast is the wagon going after moving 80.0 m up the hill?

 

[mikeph]

I think there's a specific homework forum for this sort of thing, check out the FAQ.