Does a greater amount of force always result in a greater amount of work

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

It is really hard for me right know