10)
A ball is kicked upward with an initial velocity of 56 feet per second. The ball's height h (in feet) can be expressed as a function of time t (in seconds) by the equation h = -16t2 + 56t. How much time does the ball take to return to the ground?
A)
1.75 seconds
B)
2.50 seconds
C)
2.75 seconds
D)
3.50 seconds

Question

10)  	
A ball is kicked upward with an initial velocity of 56 feet per second. The ball's height h (in feet) can be expressed as a function of time t (in seconds) by the equation h = -16t2 + 56t. How much time does the ball take to return to the ground?
A)
1.75 seconds	
B)
2.50 seconds	
C)
2.75 seconds	
D)
3.50 seconds

loser66 · Answer

solve h = -16t^2 +56t =0 to get the answer.

anonymous · Answer

how do you do that?