Question 6 An object with a mass of 2.5 kg is traveling in a circle at a speed 9.6 m/s. The object experiences a centripetal force of 14.8 N. What is the radius of the object's motion?
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- It takes a 813kg racing car 0.532 mins to travel at a uniform speed twice around a circular racetrack with a radius of 103m. What is the centripetal force acting on the car?Friction provides the force needed for a car to travel around a flat, circular race track. What is the maximum speed at which a car can safely travel if the radius of the track is 80 m and the coefficient of friction is 0.4?A student of mass M = 98 kg takes a ride in a frictionless loop-the-loop at an amusement park. The radius of the loop-the-loop is R = 24 m. The normal force by the track on the student at the top of the loop-the-loop is N₁ = 944 N. Find the speed of M at the top of the loop-the-loop. m/s Determine the normal force on M by the track at the bottom of the loop-the-loop, assuming the speed at the bottom is the same as at the top. N
- Use formulas from a page provided here No 4,5,6 please step by step No 4 4. A car goes around a curve and then around another curve. It experiences a centripetal force F1 going around the curve with radius 2R at a speed v. It then experiences a centripetal force F2 going around the second curve with radius 6R at a speed 3v. What is the ratio of the centripetal forces, F1/F2? a. 0.33 b. 0.752. A 50 kg person is sitting on a bathroom scale while riding on a Ferris Wheel. The Ferris Wheel has a radius of 8 m. The scale reads 600 N when the person is at the bottom of the motion. Find the person's speed. 3. A 0.2 kg ball, attached to a string, is moving in a vertical circle. The ball's speed is 7 m/s and the tension in the string is 8 N when the ball is at the top of its path. Find the radius of the motion.Disturbed by speeding cars outside his workplace, Nobel laureate Arthur Holly Compton designed a speed bump (called the "Holly hump") and had it installed. Suppose a 1800-kg car passes over a hump in a roadway that follows the arc of a circle of radius 22.0 m as in the figure below. If the car travels at 27.4 km/h what force does the road exert on the car as the car passes the highest point of the hump? What is the maximum speed the car can have without losing contact with the road as it passes this highest point?
- 7. Snoopy is flying his vintage war plane in a "loop the loop" path chasing the Red Baron. His instruments tell him the plane is level (at the bottom of the loop) and travelling with a speed of 180 km/h. He is sitting on a set of bathroom scales, and notes that they read four times the normal force of gravity on him. What is the radius of the loop? Answer in metres.A 50-kg ice skater goes around a circle of radius 4 m at a constant speed of 2 m/s on a level ice rink. What are the magnitude and direction of the force that the ice exerts on the skater (the total force, not just the horizontal or vertical component of the force)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
- At a circus, a stunt rider is going to do a "Loop-de-Loop". The radius of the circular part of the track is 8.13 m. The mass of the motorcycle and the rider is 318. kg. What is the minimum speed the motorcycle must have to just make it around the loop without falling?Ch3qrt # 1 ,A carousel has a radius of 12.0 m and turns once in 45.0 s. What is the speed of a rider on the edge of the carousel?#2 An airplane with a mass of 800 kg is flying in a circle of radius 500 m at 50 m/s. What is the centripetal force required to keep the airplane flying in the circle?#3 You are on a subway holding yourself off the floor by pulling on an overhead rail. The subway starts moving, and your body makes an angle of 20.0° with the vertical. Determine the acceleration of the subway car.11. The “Ring of Fire” is a popular fair ride in which riders complete a vertical circle of radius 8.0 m, going upside down in the process. Suppose a rider of mass 80.0 kg is seated on the ride and reaches a speed of 10.0 m/s at the top of the ride and 15.0 m/s at the bottom of the ride. The centripetal force follows the formulas for uniform circular motion at these two points even though the speed changes. (a) Find the range of normal force (seat acting on the rider) at these speeds. (b) What speed at the top of the loop would make the normal force zero? What does the person experience in that case?