A coin, thrown upward at timet=0

t=0from an office in the Empire State Building, has height in feet above the groundt

tseconds later given by

h(t)=16t

2

+96t+432=16(t9)(t+3).

h(t)=16t2+96t+432=16(t9)(t+3).

(a) From what height is the coin thrown? Include units in your answer.help (units)

(b) At what time does the coin hit the ground? Include units in your answer.help (units)