Constants A string is wrapped around a uniform solid cylinder of radius r = 0.6 m, as shown in (Figure 1). The cylinder can rotate freely about its axis. The loose end of the string is attached to a block. The block and cylinder each have mass m = 8.5 kg Part A Find the magnitude a of the angular acceleration of the cylinder as the block descends. a = Figure 1 of 1> Submit Request Answer Provide Feedback Next >

Part A What is the angular momentum of a figure skater spinning at 2.6 rev/s with arms in close to her body, assuming her to be a uniform cylinder with a height of 15 m a radius of 16 cm, and a mass of 52 kg ? Express your answer using three significant figures and include the appropriate units. L= Value Submit Part B Request Answer Irl= Value Units How much torque is required to slow her to a stop in 4.1s, assuming she does not move her arms? Express your answer using three significant figures and include the appropriate units. Submit Request Answer ? Units ?

I Re You're carrying a 3.6-m-long, 24 kg pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 cm from its tip. Part A For the steps and strategies involved in solving a similar problem, you may view a Video Tutor Solution. How much force must you exert to keep the pole motionless in a horizontal position? Express your answer in newtons. Vo AE F = N Submit Previous Answers Request Answer

A soccer ball, which has a circumference of 70.0 cm, rolls 12.5 yards in 3.55 s. Part A What was the average angular speed of the ball during this time? Submit ΫΠΙ ΑΣΦ Provide Feedback Request Answer ? rad/s Next >