SOLUTION: A toy rocket is propelled upward at a speed of 96ft/sec by a machine that is 11 feet off the ground. The height h of the object after t seconds can be found using the function: h (
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Question 1202971: A toy rocket is propelled upward at a speed of 96ft/sec by a machine that is 11 feet off the ground. The height h of the object after t seconds can be found using the function: h (t) = -16t^2 +96t + 11
When will the toy rocket hit the ground and what is the practical domain for this function? Answer by 4419875(21) (Show Source):
You can put this solution on YOUR website! Since we know that it is a function of h(t), and expected that h(t) = 0 which means it has hit the ground; it can be said that we can obtain time (t), in such way
By quadratic formula, and
Practically there's no such time existing at negatives so 6.11s should be the time to get into.
Now the domain can be dom h(t):(0, 6.11].
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