A rocket car with mass 1300 kg is launched by going down a 30 degree ramp with a vertical height of 15 m, and then going up another 30 degree ramp with vertical height 2.0 m. The car starts from rest, and during the time it is on the ramps (both the downward and the upward ramp), the rocket engines are supplying a constant thrust force of 1900 N to the car. Neglect friction between the car and the surface of the ramp. (a) How fast is the rocket car going at the top of the ramp, just before it is launched into the air? (b) How fast is the rocket car going when it hits the ground?
For the first ramp, h1 = L1 sin(30) L1 = h1 / sin(30) = 30 m For the second ramp, L2 = h2 / sin(30) = 4 m Total distance... View the full answer