Calculer la grandeur Gterre = G x Mterre/ r2 terre. Justifier alors pourquoi le poids d'un corps dépend de l'astre sur lequel il se trouve. Effectuer le même calcul pour la lune.

Ahockey player of mass 82 kg is traveling north with a velocity of 4.1 meters per second he collides with the 76 kg player traveling east at 3.4 meters per second if the two players locked together momentarily in what direction will they be going immediately after the collision how fast will they be moving