Chapter 08, Problem 29 Interactive Solution 8.29 offers a model for this problem. The drive propeller of a ship starts from rest and accelerates at 2.49 x 10" 3 rad/s2 for 2.14 x 103 s. For the next 1.85 x 103 s the propeller rotates at a constant angular speed. Then it decelerates at 2.90 x 10-3 rad/s? until it slows (without reversing direction) to an angular speed of 2.66 rad/s. Find the total angular displacement of the propeller.

A wheel is rotating counter clockwise initially at an angular speed of 3.50 rad/s. It decelerates over a 4.0-s interval and stops after making 2 turns (1 Turn=2pi radians). a) What is its angular acceleration? c) If it keeps the same angular acceleration, how long would it take to start going with 3.5 rad/s clockwise?

A turntable rotates at 45 rev/min. Calculate the angular velocity of the turntable. A particle on the turntable is located 0.13 m from the center of the rotating turntable. What is the speed of the particle? The particle on the turntable has a mass of 3 g. Calculate the force of friction which keeps it from sliding off.

A figure skater begins spinning counterclock- wise at an angular speed of 4.9 T rad/s. Dur- ing a 4.8 s interval, she slowly pulls her arms inward and finally spins at 7.3 T rad/s. What is her average angular acceleration during this time interval? Answer in units of rad/s².

A tire (R = 0.5 m) starts from rest and accelerates at 40 m/s? for 8 s. a) What is the total angular displacement? b) What is the velocity of the tire at 8 seconds? c) What is the angular acceleration?

A merry-go-round rotates from rest with an angular acceleration of 1.88 rad/s?. How long does it take to rotate through (a) the first 3.24 rev and (b) the next 3.24 rev? (a) Number i Units (b) Number i Units

An optical disk drive in your computer can spin a disk up to 10,000 rpm (about 1045 rad/s). If a particular disk is spun at 968.7 rad/s while it is being read, and then is allowed to come to rest over 0.301 seconds, what is the magnitude of the average angular acceleration of the disk? rad average angular acceleration: s2 If the disk is 0.12 m in diameter, what is the magnitude of the tangential acceleration of a point 1/7 of the way out from the center of the disk? m tangential acceleration: s2 about us privacy policy terms of use contact us help careers tv W MacBook Air F12 F10 F9 80 000 000 F4 F3

A fan is turned off, and its angular speed decreases from 10.0 rad/s to 6.3 rad/s in 5.0 s. What is the magnitude of the angular acceleration of the fan? 0.86 rad/s2 O 0.74 rad/s2 O 0.37 rad/s2 O 11.6 rad/s2 1.16 rad/s2

A spinning disk completes 2.9 revolutions.a. The displacement in radians is...b. It takes 2.3 s to do the 2.9 revolutions. Find its average angular velocity.c. The disk started rotating from rest. Its final angular velocity was 2.5 rad/s2   Find its average angular acceleration.