A ball is thrown straight up from the edge of the roof of abuilding. A second ball is dropped from the roof a time of 1.20 slater. You may ignore air resistance.
A) If the height of the building is 20.7 m , what must theinitial speed be of the first ball if both are to hit the ground atthe same time?
B) Consider the same situation, but now let the initial speedv0 of the first ball be given and treat the heighth of the building as an unknown. What must the height ofthe building be for both balls to reach the ground at the same timefor v0 = 8.65 m/s .
C) If v0 is greater than some value vmax, avalue of h does not exist that allows both balls to hitthe ground at the same time. Solve for vmax.
D) If v0 is less than some value vmin, a valueof h does not exist that allows both balls to hit theground at the same time. Solve for vmin.
