Hi, I'm having a few problems with my Homework I'll post one question for now then if I find out where I got stuck I'll go on to my next question. Alright... "A 1500kg car accelerates up a hill in an attempt to pass a semi truck, it had an initial velocity of 12m/s if accelerated at a rate of 2m/s^2 for the 180m up the slope. If the hill had a vertical height of 15m and ther was 400j of work done by the friction how much work was done by the cars engine?" Alright, well I know the Mass, Vi, A, D, G, H, and Vf and the W done by the friction. But I'm a little unsure about how to go about figuring this question out. If someone could start me off that would be great.