SOLUTION: The equation below expresses the approximate height,"h", in meters, of a coin "t" seconds after it is flipped vertically upward from a height of 1.5 meters with an initial veloci

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Question 1031288: The equation below expresses the approximate height,"h", in meters, of a coin "t" seconds after it is flipped vertically upward
from a height of 1.5 meters with an initial velocity of 1 meter per second. After how many seconds will the coin land on the ground ?
h=-4.9t^2+t+1.5
Answer by ikleyn(52778)   (Show Source): You can put this solution on YOUR website!
.
The equation below expresses the approximate height,"h", in meters, of a coin "t" seconds after it is flipped vertically upward
from a height of 1.5 meters with an initial velocity of 1 meter per second. After how many seconds will the coin land on the ground ?
h=-4.9t^2+t+1.5
~~~~~~~~~~~~~~~~~~~~~~~~~ 

Coin lands the ground  <----->  h = 0.

So, solve the quadratic equation   =   for t, and you will get the answer.

Use the quadratic formula.


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