9) A car with a gross weight of 3600 pounds, is parked on a street with a slope of 6. Show all work, include units in your answer. a) Find the force required to keep the car from rolling down the hill. 5 pts each b) Find the force perpendicular to the hill? 10) A magnitude of 900 pounds is required to prevent a car from rolling down a hill whose incline is 10 to the horizontal. What is the weight of the car?'m include units. 5 pts