Which of the following forces contribute to the centripetal force on me during the followingsituation: I stand next to my son while he rides ona merry-go-round (also known as a carousel;the thing with the horses that go up and down as the platform travels around in a circle). Themerry-go-round has a constant angular velocity and l'm not holding on to anything. (Multipleanswers can be selected.)force of the merry-go-round's motortensionnone; the net force on me is zerokinetic frictionO weightO spring forcestatic frictionO normal force

When an object moves in a circular path then centripetal force act on it . Necessary centripetal…

Answered: Which of the following forces…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A centrifuge in a medical laboratory rotates at an angular velocity of 3600 rev/min. When switched off, it rotates through 50.0 complete before coming to rest. what was the magnitude of the angular acceleratiom of the centrifuge as it slow down?
At amusement parks, there is a popular ride where the floor of a rotating cylindrical room falls away, leaving the backs of the riders "plastered" against the wall. Suppose the radius of the room is 3.75 m and the speed of the wall is 10.4 m/s when the floor falls away. The source of the centripetal force on the riders is the normal force provided by the wall. (a) How much centripetal force acts on a 62.2 kg rider? (b) What is the minimum coefficient of static friction that must exist between the rider's back and the wall, if the rider is to remain in place when the floor drops away?
A record turntable is rotating at 33 rev/min. A watermelon seed is on the turntable 4.9 cm from the axis of rotation. (a) Calculate the acceleration of the seed, assuming that it does not slip. (b) What is the minimum value of the coefficient of static friction between the seed and the turntable if the seed is not to slip? (c) Suppose that the turntable achieves its angular speed by starting from rest and undergoing a constant angular acceleration for 0.30 s. Calculate the minimum coefficient of static friction required for the seed not to slip during the acceleration period. (a) Number Units (b) Number i Units (c) Number Units
A steel beam is rotating in a horizontal plane to provide the centripetal acceleration for training pilots. The pilot sits 2.81 m from the center of rotation. If the pilot experiences 3.49E3N of force as he revolves with tangible velocity of 10.6 m/s, what is the pilots mass?
A point mass of 0.39 kg is set to rotate about a fixed axis 0.76 m away. The mass is initially at rest and undergoes a constant angular acceleration of 5.10 rad/s.At what time centripetal force acting on the mass be 50.8 N?
In 2015, in Warsaw, Poland, Olivia Oliver of Nova Scotia broke the world record for being the fastest spinner on ice skates. She achieved a record 342 rev/min, beating the existing Guinness World Record by 34 rotations. If an ice skater extends her arms at that rotation rate, what would be her new rotation rate? Assume she can be approximated by a 45-kg rod that is 1.7 m tall with a radius of 15 cm in the record spin.With her arms stretched take the approximation of a rod of length 130 cm with 10% of her body mass aligned perpendicular to the spin axis. Neglect frictional forces.
An athlete whirls a discuss in a circle of radius 80.0 cm. At a certain instant, the athlete is rotating at 10 rad/s and the angular speed is increasing at 50.0 rad/s². For this instant, find the tangential and centripetal components of the acceleration of the discuss and the magnitude of the acceleration. (89.4 m/s²)
(a) A 23.0 kg child is riding a playground merry-go-round that is rotating at 40.0 rev/min. What centripetal force (in N) must she exert to stay on if she is 1.50 m from its center? (Enter a number.) (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 5.00 m from its center? (Enter a number.) N
question 7
A race car travels in a circular track of radius 250 m. If the car moves with a constant speed of 85 m/s, find (a) its angular velocity and (b) its tangential acceleration. Draw the illustration and free-body diagram.
(a) A 19.0 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 2.50 m from its center? (Enter a number.)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 5.00 m from its center? (Enter a number.)N (c) Compare each force with her weight. (For each answer, enter a number.) (force from (a))/(weight) = (force from (b))/(weight)=
A large centrifuge, like the one shown in Figure 6.37(a), is used to expose aspiring astronauts to accelerations similar to those experienced in rocket launches and atmospheric reentries. (a) At what angular velocity is the centripetal acceleration if the rider is 15.0 m from the center of rotation? (b) The rider’s cage hangs on a pivot at the end of the arm, allowing it to swing outward during rotation as shown in Figure 6.37(b). At what angle below the horizontal will the cage hang when the centripetal acceleration is ? (Hint: The arm supplies centripetal force and supports the weight of the cage. Draw a free body diagram of the forces to see what the angle should be.)

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