a tire is rotating with an angular velocity that is into the page, then the angular acceleration is (answer choice 1) if the tire is slowing down and the angular acceleration is (answer choice 2) if the tire is speeding up.

An electric fan is running on HIGH. After the speed setting is changed to LOW, the angular speed reduces to 800 rpm in 1.75 s. If the angular deceleration is a constant 42.0 rad/s², then find (a) the initial angular speed of the fan (when it was on HIGH) and (b) the number of revolutions that the fan turned through as it slowed from HIGH to LOW. (c) Include a diagram of the situation.

At a time of 13D0 seconds the tires of a moving motorcycle are rotating with an unknown initial angular velocity, at that instant each tire starts accelerating with an angular acceleration of 3.00 rev/s2 for 5.00 seconds. Each tire turns through 50.0 revolutions in those 5.00 seconds. Assume the motorcycles tires have a radius of 36.0 cm and that the tires rotate without slipping relative to the road surface. How fast is the motorcycle traveling at t=5.0s?

An auto with 0.300 m radius tires travels 65,000 km before wearing them out. How many revolutions do the tires make, neglecting any backing up and any change in radius due to wear? What is the basic relationship between angular and linear displacement?

A flywheel slows from 570 to 422 rev/min while rotating through 170 revolutions.  What is the angular acceleration of the body?

At its peak, a tornado is 62.0 m in diameter and carries 120 km/h winds. What is its angular velocity in revolutions per second?  rev/s

A windmill wheel makes 4.5 revolutions a second. If the windmill wheel slows down to a complete stop within a time of 2 hours, what is the windmill’s angular acceleration?

A drill bit is able to reach 2000 rpm in 0.50 s. Assuming a constant angular acceleration, how many revolutions does this bit make as it ramps up to 2000 rpm? (A) Pictorial Representation (B) Physical Representation (C) Math Representation and Solution

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 rotating with an initial angular velocity of 1000 rev/min is switched off. In 2 seconds, the angular velocity decreases to 200 rev/min. Assuming the angular acceleration is constant, how many revolutions does the blade undergo during this time?