Tom drops a coin from the top of a building. Tom is 90 meters from the ground when he drops the coin.
1 answer:
Answer:
A: 45.9 meters
B: 4.29 seconds
Step-by-step explanation:
A: h(t)=1/2(-9.8)(3)^2+0(3)+90
h(t)=-4.9(3)^2+90
h(t)=-44.1+90
h(t)=45.9 meters
B: 0=1/2(-9.8)(t^2)+0t+90
0=-4.9t^2+90
-90=-4.9t^2
18.37=t^2
t=4.29 seconds
In the second question, the numbers aren't exact, but they're a close approximation.
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