Un joven camina 100 m para el norte, luego se orienta para el esté y camina otros 50 más

•Determinar el módulo del desplazamiento resultante

•El ángulo que el desplazamiento resultante forma con la dirección sur-norte

Suppose that three astronomical objects, 1, 2, and 3 are observed to lie on a line, and the distance from object 1 to object 3 is d. object 1 has four times the mass of object 3, and seven times the mass of object 2. find the distance between objects 1 and 2 for which the net force on object 2 is zero.