7. A motorcycle with a mass of 200 kg is traveling at 50 km/hir. The motorcycle enters a turn and sensors mounted on the wheels measured a centripetal force of 900 /V on each wheel. Determine the radius of the turn. 8. A payload is being vertically dropped to the surface of Mars with g = 3.8 m/sec. The payload is dropped from an altitude of 3000 m with V. = 0 m/sec. Neglecting air resistance, determine the fall time and the impact speed of the payload. 9. An arrow leaves the bow with the following initial conditions: speed 1" =75m/sec, angle of 43", height of 2.5 m. Suddenly, the arrow encounters a gust of wind with V, =12 m/sec blowing at an angle of 82" as shown. 820 What is the flight time of the arrow? How far has it 430 traveled? X