H=2+75t-16t^2

Question

What is the ball's height 1 second after it was kicked?

A football is kicked vertically upward from a height of 2 feet with an initial speed of 75 feet per second. The formula describes the ball's height above the ground, h in feet t was seconds after it was kicked. Use the formula to find the balls height 1 second after it was kicked

 

Answer 1

To find the height (H) after 1 second (t), plug in t = 1 and solve for H.

Answer 2

Plug in t=1 into the formula to find h.

 

h = 2 + 75(1) - 16(1)²

 

h = 2 + 75 - 16

h = 61

 

The height is 61 feet.