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Does a car moving in a circle with constant speed has acceleration or not? Why?

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Question added by muhanned albiss , Physics, Math, and IT teacher , Al Reef Institute
Date Posted: 2017/05/24
Deleted user
by Deleted user

As speed is a scalar quantity, direction of movement doesn’t affect it. But acceleration is a vector quantity as it is the rate of change of velocity which is itself a vector quantity.

So, take uniform circular motion as example,

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It’s speed is constant but it has varying velocity as it changes it’s direction so there is always a acceleration acting towards centre which is provided by centripetal force.

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