Un móvil viaja a 50 km/h y comienza a reducir su velocidad a partir del instante t=0. Al cabo de 10 segundos se detiene completamente.
Me ayuden plis

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.

Where do magnetic lines of force enter earth?

Photons with the highest energy have the longest period