Question
Height difference. A red ball and a green ball are
simultaneously tossed into the air. The red ball is given an
initial velocity of 96 feet per second, and its height t seconds
after it is tossed is -16t2 + 96t feet. The green ball
is given an initial velocity of 80 feet per second, and its
height t seconds after it is tossed is -16t2 + 80t feet.
a) Find a polynomial D(t) that represents the difference in
the heights of the two balls.
b) How much higher is the red ball 2 seconds after the
balls are tossed?
c) In reality, when does the difference in the heights stop increasing?
simultaneously tossed into the air. The red ball is given an
initial velocity of 96 feet per second, and its height t seconds
after it is tossed is -16t2 + 96t feet. The green ball
is given an initial velocity of 80 feet per second, and its
height t seconds after it is tossed is -16t2 + 80t feet.
a) Find a polynomial D(t) that represents the difference in
the heights of the two balls.
b) How much higher is the red ball 2 seconds after the
balls are tossed?
c) In reality, when does the difference in the heights stop increasing?
Answers
Damon
hr height red = 96 t - 16 t^2
hg height green = 80 t -16 t^2
D = 96 t - 80 t = 16 t
b)32 ft
c) when the first one hits the ground.
D = 96 t - 80 t
hg height green = 80 t -16 t^2
D = 96 t - 80 t = 16 t
b)32 ft
c) when the first one hits the ground.
D = 96 t - 80 t
Debbie
Thank you very much.