Question

You drop a rock off a bridge. The rock’s height, h (in feet above the water), after t seconds is modeled by h = -16t2 + 541. What is the height of the rock after 2 seconds?
A. –64 feet
B. 605 feet
C. 509 feet
D. 477 feet

Answer 1

h = -16t^2 + 541
Put t=2 second in the equation

h=-16*4+541
h=477 feet

Answer 2

The answer would be D