A 27 kg child is riding a playground merry-go-round that is rotating at 42.8rev / m * in Part a what net force is acting on her is she is standing on the merry go round 1.5 m from its center in newtons ? The net force in this situation called centripetal force Part b what the net force (in N) is acting on her is standing on an amusement park merry go round that rotates at 2.8 rpm and she is 8.8 m from it center ? Part c: how many times her weight is the for s in part a? Part d how many times her weight is the force in part b?

3. A roller coaster is built so that there is a circular curve of radius 80.0 m at the top of one hill. The speed with which the car goes over the hill varies. Assume the passenger has a mass of 50.0 kg. The cars have wheels over and under the track so that it stays on and the passenger is wearing a seatbelt. a. If the speed is 20.0 m/s going over the top what is the force on the passenger? Force factor? Is the force from the seat or the belt?

A 15.0 kg child is riding a playground merry-go-round that is rotating at 50.0 rev/min. What centripetal force (in N) must she exert to stay on if she is 1.50 m from its center?  N (b) What centripetal force (in N) does she need to stay on an amusement park merry-go-round that rotates at 3.00 rev/min if she is 7.00 m from its center?  N (c) Compare each force with her weight. force from (a) weight = force from (b) weight =

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)

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The figure shows a motorcycle going around a loop of radius R = 6.58 m at constant speed. Find the normal force magnitude on the 70.3-kg rider at the bottom of loop if the normal force at the top of the loop has a magnitude of 60 N. R n = N

The 20-g centrifuge at NASA's Ames Research Center in Mountain View, California, is a cylindrical tube 58 ft long with a radius of 29 ft (see figure). If a rider sits in a chair at the end of one arm facing the center, how many revolutions per minute would be required to create a horizontal normal force equal in magnitude to 20.0 times the rider's weight? rev/min 29 ft XKKE Need Help? Read It

A bucket of water with a mass of 2.36 kg is attached to a rope that is wound around a cylinder. The cylinder has a mass of 3.00 kg and is mounted horizontally on frictionless bearings. The bucket is released from rest. A) Find the speed of the bucket after it has fallen through a distance of 0.800 m. in m/s B) What is the tension in the rope? in N C) What is the acceleration of the bucket? Enter a positive value if the acceleration of the bucket is upward and enter a negative value if the acceleration of the bucket is downward. in m/s^2

Two balls, X and Y, are spun at a velocity of 6.5 m/s in a horizontal circle on the path shown below. Ball X has a mass of 1.3 kg, and ball Y has a mass of 0.81 kg. Which statement best describes the centripetal acceleration and centripetal forces on the balls? A. Both balls will experience equal centripetal force and centripetal acceleration. B. Ball X will experience greater centripetal force and greater centripetal acceleration. C. Ball Y will experience greater centripetal force, but ball X will experience greater centripetal acceleration. D. Both balls will experience the same centripetal acceleration, but ball X will experience greater centripetal force.

Calculate the centripetal force on the end of a 100 m (radius) wind turbine blade that is rotating at 0.5 rev/s.  Assume the mass is 4 kg. Group of answer choices 50 N 0.02 N 4 kN 3 mN