A metal box of weigh 20 N rests on its 1 m by 0.6m side on floor. How much is the pressure exerted by the metal box on the floor? Take g=
10 m/s

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

What is the momentum of a 2 kg object moving at 15 meters per second

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.