Use the position equation given below, where s represents the height of the object (in feet), v0 represents the initial velocity of the object (in feet per second), s0 represents the initial height of the object (in feet), and t represents the time (in seconds), as the model for the problem.

s = –16t2 + v0t + s0

You drop a coin from the top of a building. The building has a height of 942 feet.

AUse the position equation to write a mathematical model for the height of the coin.

s=__________

BFind the height of the coin after 4 seconds.

s = _______ ft

CHow long will it take before the coin strikes the ground? (Round your answer to two decimal places.)

t = _______ sec