The Time T (In Seconds) That It Takes an Object $t = 0.25 \sqrt { d }$

Short Answer

The time t (in seconds) that it takes an object dropped from a distance d (in feet) to fall to the ground is given by the formula $t = 0.25 \sqrt { d }$ How long will it take a pair of sunglasses to fall to the ground if a sightseer drops them from the top of a 225-foot-tall observation tower?
________ seconds