Problema Solution
An object is thrown downward with an initial velocity of 5 feet per second. The relationship between the distance "s" it travels and time "t" is given by s=5t+16t^2. How long does it take the object to fall 74 feet?
Answer provided by our tutors
s=5t+16t^2
we need to find for what t such that t>0 the distance s= 74 ft that is
5t+16t^2 = 74
by solving we find
t = 2 s
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it takes 2 seconds for the object to fall 74 ft.