Question

because the acceleration of an object moving in a circle is always in the direction of the net force acting on it, there must be a net force toward the

of the circle. this

or center - seeking force is exemplified by the suns

force on earth to keep
earth in its orbit, or by the tension in the chain of a hammer swung by an athlete.

need help? review these concept resources.

read about the concept

Explanation:

For circular motion, the net force (centripetal force) acts towards the center of the circle. The Sun's gravitational force keeps Earth in orbit.

Answer:

center; centripetal; gravitational