Home › WAEC WASSCE › Physics › Uniform Circular Motion and Gravitation › In which unit is angular velocity expressed?
In which unit is angular velocity expressed?
AMetres per second
BNewtons per metre
CRadians per second
DDegrees per metre
Answer & Solution
Correct answer: C. Radians per second
1. Angular velocity is defined as a rotation angle divided by the time taken.
2. The angle is measured in radians and the time in seconds.
3. So the unit of angular velocity is radians per second.
4. Metres per second belongs to linear velocity, which is a different quantity.
_Source: OpenStax College Physics (CC BY 4.0), Ch 6 "Uniform Circular Motion and Gravitation", section Angular Velocity_
Related questions
The Moon stays in orbit around the Earth. Which force provides its centripetal force?Why does a centripetal force change a body's direction but never its speed?A stone is whirled on a string in a horizontal circle. What supplies the centripetal forceUnder what condition does an ellipse become a circle?Kepler's third law relates the squares of the periods to which quantity?What does the line from the Sun to a planet sweep out in equal times?What shape does each planet's orbit about the Sun take, and where does the Sun sit?Besides muscle wasting, what else do astronauts lose in microgravity?