A small car with mass 0.650 kg travels at constant speed on the inside of a track that is a vertical circle with radius 5.00 m. a. If the normal force exerted by the track on the car when it is at the top of the track (point B) is 6.00 N, what is the normal force on the car when it is at the bottom of the track (point A)?

A) A 480.0 g ball moves in a vertical circle on a 88.0 cm-long string.If the speed at the top is 6.20 m/s, then what is the speed at the bottom? (Hint: Use conservation of energy) Assuming that y is positive in the upward direction, what is the gravitational force (in N) acting on the ball?  B) Assuming that y is positive in the upward direction, what is the tension force (in N) acting on the ball when it is at the top? Assuming that y is positive in the upward direction, what is the tension force (in N) acting on the ball when it is at the bottom?

A car is traveling on a curved road with a radius of R=150m. The car is traveling at speed v=22 m/s and has mass m=1450kg. a) What is the net force exerted on the car in Newtons? b) The force on the car is provided by friction. What should the coefficient of friction be between the tires and the road to give the net force found in part a?

Your brother’s toy car has a mass 0f 250. g. The car is going in a vertical circle in 3.50 s. The radius of the track is 40.0 cm. a. Draw Free Body Diagram of the car when it is at the bottom of the circle. b What is the magnitude of the force of the track on the car at the lowest point of the circle?     a. Draw Free Body Diagram of the car when it is at the bottom of the circle.

A child of mass 40.0 kg is in a roller coaster car that travels in a loop of radius 9.00 m. At point A the speed of the car is 11.6 m/s, and at point B, the speed is 12.6 m/s. Assume the child is not holding on and does not wear a seat belt. B A 30° (a) What is the force (in N) of the car seat on the child at point A? (Enter the magnitude.) 205.6 ✓N (b) What is the force (in N) of the car seat on the child at point B? (Enter the magnitude.) XN 109.8 (c) What minimum speed (in m/s) is required to keep the child in his seat at point A? 9.40 m/s

A stone that is connected to a string is being rotated horizontally. The stone completes one full circle every second; and the magnitude of the tension in the string is F-. What happens to the tension in the string if the stone speeds up such that it goes around the circle twice every second while the radius stays the same. O The magnitude of the tension increases to twice its original value. O The magnitude of the tension increases to four times its original value. O The magnitude of the tension reduces to one-fourth of its original value. O The magnitude of the tension is unchanged. O The magnitude of the tension reduces to half of its original value.

A 55.8kg ice skater is moving at 4.03 m/s when she grabs the loose end of rope, the opposite end of which is tied to a pole. She then moves in a circle of radius 0.797 m around the pole . A.)Determine the force exerted by the horizontal rope on her arms. B.) what is the ratio of this force to her weight

A car (m = 1069 kg) is moving at 16 m/s when it encounters a circular dip in the road of radius 97 m. Assuming the car maintains constant speed the entire time, what would be the magnitude of the force of gravity at the bottom of the dip? b.What is the magnitude of the car's acceleration at the bottom of the dip? c.What is the magnitude of the Normal Force on the car at the bottom of the dip?

A jet flying at 136 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, and the mass of the jet is 2.08 x 105 kg. Calculate the magnitude of the necessary lifting force. L= i

A 2.0kg ball swings in a vertical circle on the end of an 80cm long string. The tension in the string is 20N when its angle from the highest point on the circle, 0, is 30deg. a) What is the ball's speed when 0-30deg? b) What are the magnitude and direction of the ball's acceleration when 0=30deg?