Agirl of weight 600n sits on a 3-leg chair which weighs 60n. each chair leg presses the floor in a circle with a diameter of 5cm. find the average pressure exerted on the floor by each chair leg.

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.