- #1
LearninDaMath
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There is a student running at a constant velocity after a stationary bus, when the student is a certain distance from the bus, the bus begins to accelerate. how many seconds does the student have before overtaking the bus.
In order to solve the problem I have to combine acceleration formulas for the student and the bus.
x + vt - (1/2)gt^2 = x + vt - (1/2)gt^2
and solve for time. This ends up being a quadratic formula so I get two solutions for t.
both solutions end up being positive.
How do I know which one to use for the correct answer?
In order to solve the problem I have to combine acceleration formulas for the student and the bus.
x + vt - (1/2)gt^2 = x + vt - (1/2)gt^2
and solve for time. This ends up being a quadratic formula so I get two solutions for t.
both solutions end up being positive.
How do I know which one to use for the correct answer?