Work done by gravity on a car rolling down a hill

[physicsmaster123]

I tried E =Fxcos0 but only ended up with 243kJ

 

[Ibix]

What values of ##F##, ##x##, and ##\theta## did you use and why?

 

[Ibix]

Hint: What is the textbook definition of ##\theta## in the formula you stated?

 

[haruspex]

I tried E =Fxcos0 but only ended up with 243kJ

What distance in the diagram is ##50\cos(8°)##m?

 

[hmmm27]

Specific to this exercise, ##W=\Delta E_P## is a better fit than ##W=Fd\cos \theta##