A ball is swung in a horizontal circle of centre O with a constant speed. acceleration?

A.

Away from O

B.

Along the Circumference of the circle

C.

Toward centre O

D.

Along a tangent to the circle

Correct answer is C

Simple harmonic motion (SHM) is a special type of periodic motion where the restoring force on the moving object is directly proportional to the magnitude of the object's displacement and acts towards the object's equilibrium position.