Here we're applying a basic physics rule for vertical motion where the only pull on the object is gravity.
This rule has the form
h(t) = h + v t + (1/2)a*t^2
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To adapt this rule to this particular question replace h with 0, as the
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upward path of the object begins at 0 ft. Replace v with +15 ft/sec.
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Replace "a" with (-32.2 ft/(sec^2); this is the acceleration due to gravity.
Then we have the following, with the label F(t):
F(t) = 0 + (15 ft/sec)t + (1/2)(-32.2 ft)/(sec^2), or
F(t) = 15t - 16.1t^2. Thus, Choice D is correct.
Please note: To avoid confusion, please use " ^ " to denote exponentiation:
F(t) = -16t^2 + 15t
C would be the correct answer. You caanot multiply just one part of an equation, you must multiply the whole thing. All of the other steps follow this rule, so C is an incorrect step, and is therefore the correct choice.
Hope this helps!
Answer:
Step-by-step explanation:
do the proportion ...
1 inch/ 80 miles =x inch/ 1100 miles
1100= 80x
x=1100/80=13.75
The trip would be about 13.75 inches on the map
hope this will help u
Answer:
3b+5b=total
Step-by-step explanation:
you didnt put enough information ( the cost of the stuff)
I need more information to answer this question, so nobody can answer...
