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Answer (4)
"Circular motion" is motion in a circular path.
-- Any point on the tire of a bicycle or a car that is moving.
-- Any point on the hour, minute, or seconds-hand of an 'analog' clock.
-- The ball in the roulette wheel before it comes to a stop.
-- Any point on the rim of the Wheel of Fortune before it stops.
-- Any point on any propeller of a windmill, when the wind is blowing.
QUESTION
Define Circular motion and its types
A N S W ER
Circular motion
MOTION OF THE BODY CIRCULAR PATH IS CALLED CIRCULAR MOTION
FEW IMP POINTS ABOUT IT :-
A tengential is always responsible for change in speed
If the Direction of acc and velocity is same then body's speed inc
If they r in oppsite direction then Body's speed dec .
If speed becomes constant then tangential acc become zero .
By the basis of tangial acc the circular motion is divided into two types uniform circular motion and non uniform circular motion
UNIFORM CIRCULAR MOTION
when object in a circular path in a constant speed or constant circular speed is called uniform circular motion.
In case of uniform circular motion acc tendial will be zero
In case of uniform circular motion acc centripetal will be equal to net acc.
NONUNIFORM CIRCULAR MOTION
Centripetal acc is not equal net acc
Circular acc and tendial acc is not equal to zero .
EXAMPLES : −
Earth revolving around the sun is an example of uniform circular motion
Spinning top rotation on its own axis is example of non uniform circular motion
Rotating/ moving blades of fan etc
a rotating stone lied to a rope
Circular motion is the movement of an object along a circular path, which can be either uniform or non-uniform. Examples include a spinning wheel, planets orbiting the sun, and the hands of a clock. Centripetal force is necessary to maintain this motion, acting inward towards the center of the circle.
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