9. What is the take-off speed of a locust if its launch angle is 55° and its range is 0.8m?
10. A car is traveling on a flat circular track of radius 200 m at 20 m s' and has a centripetal acceleration a = 4.5 m/s2 (a) If the mass of the car is 1000 kg, what frictional force is required to provide the acceleration? (b) If the coefficient of static friction is is 0.8, what is the maximum speed at which the car can circle the track? Motion in two dimension problem 10. Sindh Textbook Board (stb) problems
8. A marter shell is fired at a ground-level target 500 m distance with an initial velocity of 90 m/s. What is its launch angle? Motion in two dimension problem 8. Sindh Textbook Board (stb) problems