A 500-kg car is pulled 50 m up a 15o hill with a 2000-N force acting parallel with the hill.
Friction can be neglected.
If initial speed of the car is 10 m/s, what is its speed after it has been pulled 50 m?

Question

A 500-kg car is pulled 50 m up a 15o hill with a 2000-N force acting parallel with the hill.
Friction can be neglected.
If initial speed of the car is 10 m/s, what is its speed after it has been pulled 50 m?

anonymous · Answer

shouldn't the speed be constant if the force is constant and the gradient of the hill is constant, so the speed will be 10 m/s. I could be overlooking something.

anonymous · Answer

the answer is 15.7m/s. I just need to figure out how to get there

anonymous · Answer

how is that

anonymous · Answer

just figured it out. you take the force pull and subtract mgsin(theta) from it. the divide by the mass to find the acceleration. then plug the numbers into V^2=Vo^2+2ax.