Question 1186549
A sleeping dog wakes up and chases a cat for 85m. If the dog has an acceleration of 4m/s^2 how fast was the dog moving at the end?
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Find the # of seconds.
s = at^2/2
85 = 4t^2/2 = 2t^2
t^2 = 42.5
t = sqrt(42.5)
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v = at
v = 4sqrt(42.5)