79. A car travels in a circle with constant speed. The net force on the car is zero because the car is not accelerating. is directed forward, in the direction of travel. is directed toward the center of the curve. O none of the above

3. A ball is swung in a vertical circle such that at one point along its circular path the forces exerted on the ball can be represented by the free body diagram. The magnitude of the tension force exerted on the ball, T, is twice that of the force due to gravity exerted on the ball from Earth, F. What is the For T location of the ball, and what is the magnitude of the centripetal acceleration of the ball in terms of g? Location Acceleration A. Bottom of the circle g B. Bottom of the circle 3g C. Top of the circle D. Top of the circle 3g

Ch. 5 # 45 . Please see attached image for Physics question . Thank you

A mountain climber swings a grappling hook (m=0.75 kg) at the end of a 0.6 m long rope in a vertical circle with a speed of 11 m/s.  Determine the tension in the rope when the hook is at the top of the circle.