If a force of 8 N acts on a mass of 2 kg for a period of 24 seconds, what was the magnitude of the impulse given to the mass?

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

In automobile steering wheel is shown what is the ideal mechanical advantage blank? if the ama is eight what is the efficiency of the steering wheel?

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