anonymous
  • anonymous
he formula below gives V, the velocity in feet per second of a falling object t seconds after it has been dropped. V(t) = 32t If a rock is dropped off a bridge, how fast will it be falling after 3 seconds? A. 64 feet per second B. 96 feet per second C. 35 feet per second D. 128 feet per second
Mathematics
jamiebookeater
  • jamiebookeater
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SolomonZelman
  • SolomonZelman
You are given that formula: \(V(t)=32\cdot t\) What this formula means is that your velocity V(t), at the time of t seconds, will be 32 times that t. So for example if I wanted to find the velocity after 5 seconds (at t=5), then I would plug in 5 into the formula: \(V(5)=32\times 5=160\)
SolomonZelman
  • SolomonZelman
You need to do the same, but in your case- after 3 seconds (at t=3).
anonymous
  • anonymous
ty

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