A motorcycle is traveling up one side of a hill and down the other side. The crest of the hill is a circular arc with a radius of 33.5 m. Determine the maximum speed that the cycle can have while moving over the crest without losing contact with the road.

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.

Which accurately compares concave and convex lenses?

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.