Posted by James on .
A 2.0 x 103 kg car is pulled 345 m up a hill that make s an angle of 15° with the horizontal. What is the potential energy of the car at the top of the hill? If the car rolls down the hill, what will its speed be if we neglect friction? plz help? confused

Physics 
bobpursley,
How high is the hill? Answer: 345*sin15
PE= mgh 
Physics 
klunk,
it is 654 muiles ahead