The angular velocity for the daily rotation of the earth is
Correct answer: C. π/12 radian hr-1
- A. π/3 radian hr-1
- B. π/6 radian hr-1
- C. π/12 radian hr-1
- D. 12 radian hr-1
Explanation
The angular velocity (ω) is the scalar measure of rotation rate. In one complete rotation, angular distance travelled is 2π and time is time period (T). Angular velocity is given by the following formula: ω=2π/T The time period for one complete rotation of the Earth is 24 hours so ω=2π/24 =π/12
This question appeared on the ETEA MDCAT 2011 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 girl sitting on a spinning bus tool with her legs folded , suddenly out spreads then her angular velocity will:
A girl sitting on a spinning bar tool with her legs folded, suddenly out spreads her angular velocity will:
If a particle is moving with uniform circular motion, then:
The angular acceleration of second hand of watch is
The direction of the angular velocity vector is along:
The angular speed in radian/hour for the daily rotation of our earth is?