WAEC - Physics (2021 - No. 20)
A ball is swung in a horizontal circle of centre O with a constant speed. What is the direction of its acceleration?
Away from O
Along the Circumference of the circle
Toward centre O
Along a tangent to the circle
Vysvetlenie
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.