Avolleyball is hit from an initial height of 1 foot. the ball has an initial vertical velocity of 58 feet per seconds. does the ball reach a height of 55 feet? 52 feet? explain your reasoning.

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.