When the penny hits the ground, h will = 0.
So: Set h(t) = 0 = -4.9t^2 + 0t + 150 m
Then 4.9t^2 = 150, and so t^2 = sqrt(150 / 4.9) = plus or minus 5.53 sec.
We can use only the positive root, as we're measuring time.
t = 5.5 sec (answer)
Answer:
The third one or the first one
Step-by-step explanation:
Can't be +4 or -4
Answer:
64 <em> </em><em>te</em><em> </em><em>quiero</em><em> </em><em>mucho</em><em> </em><em>ygrfrf7rttffrtx</em>
