In a circular path body moving along the circumference of a circle, completes two revolutions. If the radius of the is r, total angular displacement covered is
Correct answer: D. 4πr
- A. πr
- B. 2πr
- C. Zero
- D. 4πr
Explanation
Explanation is given below:When a body completes two full revolutions in a circular path, it means it has moved around the entire circumference of the circle twice. The angular displacement is the angle in radians through which the body has moved around the circle.The formula to calculate the angular displacement is:Angular Displacement (θ) = (Number of Revolutions) * 2πIn this case, the number of revolutions is 2, and we know that 2π is the equivalent of one complete revolution.θ = 2 * 2πθ = 4πSo, the total angular displacement covered by the body is 4π radius.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Angular Displacement
Angular displacement measures the change in a body’s angular position and is expressed in radians or degrees, with anticlockwise and clockwise directions assigned signs. It connects to arc length, angular velocity and angular acceleration, and must be distinguished from ordinary linear displacement in rotational motion.
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 Displacement questions
The number of revolutions in 3π radians
The angle subtended by an arc of length equal to radius of circle is
A wheel is at rest. Its angular velocity increases uniformly and becomes 60rad/sec after 5 sec. The total angular displacement is
For anti-clockwise rotation, the angular displacement is:
How many degrees in 2π/5 radians?
Which one of the following is the SI-unit of angular displacement?