Question

when a ball is thrown upward at a speed of 19m/s its height s above the ground in meters after t seconds is given by the formula s=19t -4.9t^2 find the height of the ball 3 seconds

Answer 1

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Answer 2

replace t by 3 get
\[s=19\times 3-4.9\times 3^2\]

Answer 3

i like the bike :)

Answer 4

when t = 3; what does it equal?

Answer 5

yay!

Answer 6

lol .... thats the bike ;)

Answer 7

h=12.9 m