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A cyclist is traveling at an initial speed of 10 ms She accelarates at a rate of .500 ms find her final speed after 9 s?
Wiki User
∙ 14y ago
Her final speed is 14.5 m/s.
The kinematics equation v = at + v0 will be useful here. Note that t is the time measured in seconds, a is the acceleration, v0 is the initial velocity, and v is the velocity after t seconds (the final velocity).
We are given that v0 = 10 m/s, a = 0.500 m/s2, and t = 9 s.
Using the above kinematics equation we get v = (0.500 m/s2)(9 s) + 10 m/s = 14.5 m/s.
Since speed = |velocity|, then her final speed = |14.5 m/s| = 14.5 m/s.
Wiki User
∙ 14y ago
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If 20.00mL of a 1.50M solution of KBr is diluted to a final volume of 150.0mL what is the new molar concentration?
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