1 / 7

S = r θ is valid for θ in both degrees and radians.

S = r θ is valid for θ in both degrees and radians. True False.

timothy-mason
Télécharger la présentation

S = r θ is valid for θ in both degrees and radians.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. S = rθ is valid for θ in both degrees and radians. • True • False

  2. Two points are on a disk that rotates about an axis perpendicular to the plane of the disk at its center. Point B is 3 times as far from the axis as point A. If the linear speed of point B is V, then the linear speed of point A is • 9V • 3V • V • V/3 • V/9 • None of the above

  3. Two wheels are connected by a chain. If v1 and ω1 are linear and angular velocities of the smaller wheel, and v2 and ω2 are linear and angular velocities of the larger wheel, which of the following is true: • v1 =v2 and ω1 >ω2 • v1 =v2 and ω1 <ω2 • v1 =v2 and ω1 =ω2 • ω1 =ω2 and v1 >v2 • ω1 =ω2 and v1 <v2 • ω1 =ω2 and v1 =v2 • v1 =v2 and ω1 =ω 2 • none of the above

  4. If a wheel 212 cm in diameter takes 2.25 s for each revolution, what is its period?

  5. If a wheel 212 cm in diameter takes 2.25 s for each revolution, what is its angular speed?

  6. When the power is turned off on a turntable spinning at 78.0 rpm, you find that it takes 10.5 revolutions for it to stop while slowing down at a uniform rate. What is the angular acceleration (rad/s2) of this turntable?

  7. When the power is turned off on a turntable spinning at 78.0 rpm, you find that it takes 10.5 revolutions for it to stop while slowing down at a uniform rate. How long does it take to stop after the power is turned off? Here, you may assume α = -0.506 rad/s2.

More Related