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InsTanCeZ
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Homework Statement
The velocity v of a particle moving in the xy plane is given by v = (6.0t - 4.0t2) i + 6.0 j, with v in meters per second and t (> 0) is in seconds.
(d) When does the speed equal 10 m/s?
Homework Equations
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The Attempt at a Solution
6-8t=-10
t=2s
That's not right