angular motion

A grindstone spinning at the rate of 8.3 rev/s has what approximate angular speed?

• 3.2 rad/s
• 26 rad/s
• 52 rad/s
• 81 rad/s

Tags

CCSS.HSF.TF.A.1

A 0.12-m-radius grinding wheel takes 5.5 s to speed up from 2.0 rad/s to 11.0 rad/s. What is the wheel's average angular acceleration?

• 9.6 rad/s/s
• 4.8 rad/s/s
• 3.1 rad/s/s
• 1.6 rad/s/s

Tags

NGSS.HS-PS2-1

Categorize something that is measured in feet/second

• Linear Distance

• Angular Distance

• Linear Speed

• Angular Speed

Categorize something that is measured in revolutions

• Linear Distance

• Angular Distance

• Linear Speed

• Angular Speed

Categorize something that is measured in radians per second

• Linear Distance

• Angular Distance

• Linear Speed

• Angular Speed

Categorize something that is measured in degrees

• Linear Distance

• Angular Distance

• Linear Speed

• Angular Speed

Categorize something that is measured in rpm

• Linear Distance

• Angular Distance

• Linear Speed

• Angular Speed

In the equation

 $s=\theta r,\ \ \theta\ represents...$  

• Angular velocity measured in radians

• The central angle measured in degrees

• The central angle measured in revolutions

• The central angle measured in radians

In the equation

$v=\omega r,\ \ \omega\ represents...$

• Angular velocity measured in radians

• Angular velocity measured in degrees

• Angular velocity measured in revolutions

• The central angle measured in radians

A 0.12-m-radius grinding wheel takes 5.5 s to speed up from 2.0 rad/s to 11.0 rad/s. What is the wheel's average angular acceleration?

• 9.6 rad/s/s
• 4.8 rad/s/s
• 3.1 rad/s/s
• 1.6 rad/s/s