a swing ride at a carnival consists of chairs that are swung in a circle by 14.4m cables attached to a vertical rotating pole (angle theta=60deg). Suppose the total mass of a chair and it’s occupant is 260kg. Determine the tension in the cable attached to the chair and the speed of the chair.

A small block with mass 0.0425 kg slides in a vertical circle of radius 0.450 m on the inside of a circular track During one of the revolutions of the block, when the block is at the bottom of its path, point A, the magnitude of the normal force exerted on the block by the track has magnitude 3 85 N. In this same revolution, when the block reaches the top of its path, point B, the magnitude of the normal force exerted on the block has magnitude 0575 N Part A How much work was done on the block by friction during the motion of the block from point A to point B Express your answer with the appropriate units. Writion 0.15 Submit → J Previous Answers Request Answer X Incorrect; Try Again: 2 attempts remaining Check your signs ?

See Conceptual Example 6 to review the concepts involved in this problem. A 10.8-kg monkey is hanging by one arm from a branch and swinging on a vertical circle. As an approximation, assume a radial distance of 61.6 cm is between the branch and the point where the monkey's mass is located. As the monkey swings through the lowest point on the circle, it has a speed of 1.99 m/s. Find (a) the magnitude of the centripetal force acting on the monkey and (b) the magnitude of the tension in the monkey's arm. (a) Number (b) Number Units Units #

A roller coaster has a vertical loop of radius 25.0 m. If the roller coaster operates at a constant speed of 30.0 m/s while in the loop, what normal force does the seat provide for a 60 kg passenger at the bottom of the loop? O 2775 N 2748 N O 588 N O 1305 N ) 1572 N O 2160 N

A rubber ball is attached to a 1.44-meter string and spun in a horizontal circle. The tension in the string is 2.91 N. It takes 0.644 s for the ball to complete one revolution. Determine the mass (in kg) of the ball.

Two identical twins hold on to a rope, one at each end, on a smooth, frictionless ice surface. They skate in a circle about the center of the rope (the center of mass of the two-body system) and perpendicular to the ice. The mass of each twin is 78.0 kg. The rope of negligible mass is 3.5 m long and they move at a speed of 5.40 m/s. a)What is the magnitude, in kg · m2/s, of the angular momentum of the system comprised of the two twins?   (b)They now pull on the rope and move closer to each other so that the rope between them is now half as long. Determine the speed, in m/s, with which they move now.    (c)The two twins have to do work in order to move closer to each other. How much work, in joules, did they do?

A small ball is attached to one end of light rope that has a length of 4.0 m. The other end of the rope is attached to the ceiling. The ball is held with the rope horizontal and released from rest. The ball moves in the motion of an arc of the circle. When the ball is at its lowest point, with the rope vertical, the tesion of the rope is 15.5 N. What is the mass of the ball?

A 43-kg child riding a Ferris wheel (radius = 13 m) travels in a vertical circle. The wheel completes one revolution every 17 s. What is the magnitude of the force on the child by the seat (i.e. normal force) at the highest point on the circular path?

A circular-motion addict of mass 81.0 kg rides a Ferris wheel around in a vertical circle of radius 12.0 m at a constant speed of 7.10 m/s. (a) What is the period of the motion? What is the magnitude of the normal force on the addict from the seat when both go through (b) the highest point of the circular path and (c) the lowest point? Unit of Part A is s, Part B and C is N.

A rocket powered car is set inside a circular track and ignited. Pressure sensors on the wall of the track measure the centripetal acceleration of the car as a function of time to be ac (t) = (9 m/s®) tª + (42 m/s*) t² + (49 m/s³) If the radius of the track is 2.28 m, what is the tangential acceleration of the rocket car at t = 6.76 s? tangential acceleration: m/s?