A motor cylist going round in a circular track at constant speed has
Correct answer: C. Constant angular velocity
- A. Constant linear velocity
- B. Constant acceleration
- C. Constant angular velocity
- D. Constant force
Explanation
The answer is constant angular velocity. A motorcyclist going round in a circular track at constant speed has constant angular velocity. It does not have a constant force. Constant angular velocity means that the motorcyclist is rotating at the same rate at all points on the track. This is also because the motorcyclist is moving in a circle at a constant speed. The force acting on the motorcyclist is the centripetal force. The centripetal force is the force that keeps the motorcyclist moving in a circle. The centripetal force is not constant because it depends on the speed of the motorcyclist and the radius of the track. If the motorcyclist increases its speed, the centripetal force will increase. If the motorcyclist decreases their speed, the centripetal force will decrease.
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
The ratio of angular speed of the minute hand of clock to that of its hour hand is:
The angular velocity of the minute hand of a clock is:
The angular speed in radian/hour for daily rotation of the Earth is:
In circular motion, If the angular velocity and angular acceleration becomes parallel, then the motion becomes:
rev/min is equal to:
The period of circular motion is: