An object slides on a level floor. it slows and comes to a stop with a constant acceleration of magnitude 2.4 m/s2. what is the coefficient of kinetic friction between the object and the floor?

How do we measure or think of speed in the united states?

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.

What are the necessary conditions for fusion?