Is it possible for a body moving with constant speed round a circular path to have an acceleration?Explain.?

Question

circular motion

Answer 1

Sometimes it is just not enough to say "yes" it is under acceleration because the velocity is changing directions. This is not the most intuitive concept, so let me try to help you understand.
We start with the classical ball on a string being twirled. According to Newton's Laws of Motion, the ball wants to fly straight forward. It doesn't want to go in a circle.
But the tension in the string pulls the ball and keeps it from going straight. The ball's path is bent into a curve because of the string. The same thing happens with planets or moons in orbit except that instead of a string, you have gravity.
In the case of a race car on the track, you don't have a string or gravity, but the track itself is curved, and the track "pushes" the car into a curve.
The motion of the object is being affected by the forces placed on it by the string, gravity or the track. The result of that force is a change in the direction (and since direction is part of velocity, then the velocity is also changed). This change in velocity is an acceleration towards the center of the circle. It is there fore called centripetal (or "center seeking") acceleration.
The object in motion is not going any faster or slower, but it is changing its direction as a result of an external force. Hence F=ma.
I hope this helped.

Answer 2

An object is unaccelerated if and only if it moves in a straight line at constant speed, or not at all. Uniform circular motion means that the object is being accelerated in a direction perpendicular to its direction of travel (velocity vector). That's called centripetal acceleration.

Answer 3

Yes, in fact it must have an acceleration by definition. Velocity is always linear since the linear velocity is always changing on a circular path, the object is constantly accelerating.

Answer 4

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Answer 5

Huey from Ohio *almost* got it right.

Speed is just so much distance per time. Speed does not have a direction.

Velocity is speed & direction.

Accleration is change in velocity, not just speed.

So if direction changes, the velocity must change. Because direction is part of velocity.

Answer 6

although speed is constant velocity is changing as there's a change in direction. as the definition says: acc is the rate of change of velocity, therefore there is an acceleration. i've done this today itself and i think this explanation is clear enough.

Answer 7

well depends on her mood, and on what other choices acceleration has..by the way does the body have his clothes on/what?. lol.. i cant believe you are asking me a physics question.