A cliff diver plunges from a height of 12.1 m above the water's surface. The distance the diver falls in t seconds is given by the function d(t)=4.9t² m.
Which equation can be solved for t to find the time (in seconds) when the diver hits the water?
A. 4.9t²=0
B. 4.9t²−12.1=12.1
C. 4.9t²=12.1
D. 4.9t²+12.1=0
E. 4.9t²+12.1=−12.1
