An elecric motor turns at 400 revolutions per minute. Its angular velocity in rad/s will be:
Correct answer: C. 40π /3
- A. 20π /3
- B. 30π /3
- C. 40π /3
- D. 20π /4
Explanation
Explanation for this question will be added soon.
This question appeared on the NUMS 2023 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Angular Velocity
Angular velocity describes how quickly angular displacement changes with time, with ω = Δθ/Δt and units of radians per second. Questions relate angular and linear motion through v = rω, use the direction given by the right hand rule, and distinguish angular velocity from angular acceleration and ordinary frequency.
Practise Rotational and Circular Motion
521 free Rotational and Circular Motion MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Angular Velocity questions
A rotating wheel coincides 12 rev in 4s. find the average angular velocity In rad/sec
The SI unit of angular acceleration is:
A stone is whirled in a vertical circle at the end of an inelastic string. When the stone is at the highest position, the tension in the string will be
The dimensions of angular velocity are:
The frequency of a particle performing circular motion changes from 60 rpm to 180 rpm in 20s, then the angular acceleration is:
A mixer grinder rotates clockwise. Its angular velocity will be?