yep. For the last one, I know that the forces acting on the car that caused the collision are : F(g), F(normal), and sliding force - I think I'm missing something. I used a=gf; f being the coefficient of friction calculated by the police, to find acceleration. Since the car is on a slope F(g)...
:confused: 1)A physics professor reaches for a well bucket of mass m, the professor hits a lever and the bucket falls into the well. The bucket is suspended from a rope of negligible mass which is wrapped around a sold cylinder of mass M and radius R. The cylinder is mounted on a frictionless...