The acceleration of an object towards the centre of a circle when an object is in motion (rotating) around a circle at a constant speed
v = r⍵
Centripetal acceleration is always directed toward the centre of the circle, and is perpendicular to the object’s velocity
A ball tied to a string is rotating in a horizontal circle with a radius of 1.5 m and an angular speed of 3.5 rad s−1.Calculate its centripetal acceleration if the radius was twice as large and angular speed was twice as fast.
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