A body rotating at 10 rad/s in a circle of radius 2m has the tangential velocity:
Correct answer: B. 20 ms-1
- A. 5 ms-1
- B. 20 ms-1
- C. 100 ms-1
- D. 0.5 ms-1
Explanation
Option B is correct.Given data: r=2m, w=10rad/sfind out:vt=?solution:vt = rω = (2)(10) = 20 m/s
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Simple Harmonic Motion
Simple harmonic motion is oscillation in which acceleration is directly proportional to displacement and directed toward the equilibrium position. Work includes displacement, velocity, acceleration, phase, period, frequency, amplitude and energy, with applications to springs and simple pendulums. The restoring force and the conditions for SHM distinguish it from general periodic motion.
Practise Waves
1,281 free Waves 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 Simple Harmonic Motion questions
An athlete completes one round (0 = 27π radian) of a circular track of 40m radius in 40 sec. How much linear displacement will he cover in 2 minutes and 20 seconds?
Angular velocity of a body is 4 rev/min. Its angular velocity in radian will be:
For satellite telecommunication _ signals are used.
Two isosceles triangles are similar, if the angle between their:
For a body moving in a circle, its linear _ is equal to radius times angular _.
A 1000kg car is turning around a corner at 10ms-1 as the radius of circle is 10m. Find the centripetal force: