Physics · LAWS OF MOTION

Refer to the given figure showing a stone being whirled in a horizontal circle at constant speed by a person holding a string. The direction of the net external force acting on the stone at any instant is:

1. along the tangent to the circle in the direction of velocity
2. radially outwards away from the center
3. vertically upwards along the axis of rotation
4. radially inwards towards the center of the circular path