An odometer of a car reads 57321.0 km when the clock shows the time 8; 30 am. what is the distance moved by the car, if at 8; 50 am, the odometer reading has changed 57336.0 km. calculate the speed of the car in km/m during this time. express the speed in km/h

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.