Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation h = −16t + 160t + 12
0 models the h height at t seconds of the flare. How long will it take for the flare to hit the ground? (to the nearest tenth of a second)
1 answer:
Answer:
10.7 sec.
Step-by-step explanation:
When the flare hits the ground, the height of the flare will be equal to 0; that is h = 0.
We substitute h with 0 in the equation and solve for t. This can be done graphically or analytically. Kindly find the attached for the graphical solution.
From the graph, we see that h is 0 when t is 10.7 sec.
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