Solve the problem.
-As part of a physics experiment, Ming drops a baseball from the top of a 310-foot building. To the nearest tenth of a second, for how many seconds will the baseball fall? (Hint: Use the formula h $$h = 16 t ^ { 2 }$$ , which gives the
Distance h, in feet, that a free-falling object travels in t seconds.)
A) 19.4 sec
B) 1.1 sec
C) 4.4 sec
D) 77.5 sec

Question

Quizplus · Accepted Answer

Using the formula $h = 16t^2$, we solve for $t$ when $h = 310$. Rearranging the formula gives $t = \sqrt{\frac{h}{16}}$. Substituting $h = 310$ feet, we get $t = \sqrt{\frac{310}{16}} \approx 4.4$ seconds.

Solve the Problem h=16t2h = 16 t ^ { 2 }h=16t2

Solve the Problem $h = 16 t ^ { 2 }$