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Sektor404 Sektor404
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12 years ago
Given the formula s = vt + half(1/2)at^2


(a) Evaluate s when v = 34, t = 123 and a = 45. Round your answer to the
nearest 100.

(b) Make v the subject of the formula.

(c) Evaluate v when s = 1234, a = 12 and t = 456. Give your answer to two
significant figures.

Please show working when/if required, thanks! Slight Smile
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wrote...
Educator
12 years ago
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wrote...
12 years ago
a) s = (34)(123)+(1/2)(45)(123)^2 = 344600

b) v = [s - (1/2)at^2]/t

c) v = [1234 - (1/2)(12)(456)^2]/456 = -2700
Sektor404 Author
wrote...
12 years ago
Thank you very much to the both of you, greatly appreciated!!
wrote...
Educator
12 years ago
Thank you very much to the both of you, greatly appreciated!!

Wink Face Glad I could be of assistance.
wrote...
12 years ago
344600
[s - (1/2)at^2]/t
-2700
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