A steep safety ramp is built with a 15 incline. A 20,000lbf truck is moving at 70mph applies a braking force of 5,000 lbf as it enters the ramp. Neglect rolling and air resistance. A. Draw a FBD of the truck. B. What is the momentum of the truck in lbfs ? C. How much time does it take for the truck to reach a speed of 20mph ? D. How long does the ramp need to be for the truck to come to a complete stop? E. Compare the braking force and the component of weight that does work - is either negligible or are both contributing to the truck stopping? A steep safety ramp is built with a 15 incline. A 20,000lbf truck is moving at 70mph applies a braking force of 5,000 lbf as it enters the ramp. Neglect rolling and air resistance. A. Draw a FBD of the truck. B. What is the momentum of the truck in lbfs ? C. How much time does it take for the truck to reach a speed of 20mph ? D. How long does the ramp need to be for the truck to come to a complete stop? E. Compare the braking force and the component of weight that does work - is either negligible or are both contributing to the truck stopping