If a ball is dropped from a height of h feet it takes t seconds to hit the ground which is modeled by the equation . How long will it take the ball to hit the ground when it is dropped from 100 feet? Round to two decimal places if necessary.
A) 6.25 sec
B) 2.50 sec
C) 2.00 sec
D) 0.63 sec

Question

If a ball is dropped from a height of h feet it takes t seconds to hit the ground which is modeled by the equation  . How long will it take the ball to hit the ground when it is dropped from 100 feet? Round to two decimal places if necessary.
A) 6.25 sec 
B) 2.50 sec 
C) 2.00 sec 
D) 0.63 sec

Quizplus · Accepted Answer

We plug in h=100 into the given equation: t = sqrt(2h/32) = sqrt(200/32) = 2.50 sec (rounded to two decimal places). Therefore, the best choice is (B).

If a Ball Is Dropped from a Height of H