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Vlad [161]
3 years ago
12

y= -16t^2 +400, where t represents the number after the camera is dropped. How long will it take before Kay sees the splash from

the camera hitting the water?
Mathematics
2 answers:
Sergio039 [100]3 years ago
5 0

Answer:

Your problem statement needs a bit of correction:

"Y= -16t^2 +400, where t represents the number OF SECONDS after the camera is dropped. How long will it BE before Kay sees the splash from the camera hitting the water?"

Set y = -16t^2 + 400 = 0.  We assume that 400 and 0 represent feet (English system).

Then 16t^2 = 400, and so 25 = t^2.  Only the positive square root makes sense here, and that root is 5 (seconds).

Step-by-step explanation:

Sholpan [36]3 years ago
3 0
Your problem statement needs a bit of correction:

"<span>Y= -16t^2 +400, where t represents the number OF SECONDS after the camera is dropped. How long will it BE before Kay sees the splash from the camera hitting the water?"

Set y = -16t^2 + 400 = 0.  We assume that 400 and 0 represent feet (English system).

Then 16t^2 = 400, and so 25 = t^2.  Only the positive square root makes sense here, and that root is 5 (seconds).</span>
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