1. The problem statement, all variables and given/known data A professor has to haul a cart down a ramp. The ramp has an angle of about 10 degrees and is about 5 meters long. His initial speed at the top of the ramp is 6 m/s, and the cart has a mass of about 95 kg. How hard does he have to pull on the cart so that at the bottom of the ramp, its speed does not exceed 7 m/s? Neglecting friction, what is the magnitude of the minimum force he has to exert on the cart? Initial Velocity: 6m/s Final Velocity: 7m/s Mass: 95kg Distance: 5m Angle: 10 2. Relevant equations Vf^2=Vi^2 +2ax F=ma 3. The attempt at a solution Well first I found the acceleration of the cart. 49=36 +2a(5) a=1.3 Then I thought that the net force would be F=mgsin10 + ma so F= 95*9.8*sin(10) + 95*1.3 = 285 N But Im still getting it wrong. Did I make a mistake someplace?