Elevators traveling from one floor to the next do not travel at a constant speed. suppose the speed of an elevator in feet per second is
given by the function 10) = -0.54* +422 - 1212 + 16, where t is the time in seconds.
find the speed of the elevator at 2 seconds.
a. 7.5 ft/s
b. 8 fts
c
10.5 ft/s
5 fts
d.