Asked by rachel
A dart leaves the barrel of a blowgun at a speed v. The length of the blowgun barrel is L. Assume that the acceleration of the dart in the barrel is uniform.
Find a time that the dart moves inside the barrel.
Express your answer in terms of the variables L and v.
If the dart's exit speed is 16.0 m/s and the length of the blowgun is 1.10 m , find the time the dart is in the barrel.
Express your answer with the appropriate units.
Find a time that the dart moves inside the barrel.
Express your answer in terms of the variables L and v.
If the dart's exit speed is 16.0 m/s and the length of the blowgun is 1.10 m , find the time the dart is in the barrel.
Express your answer with the appropriate units.
Answers
Answered by
Damon
It started at v = 0
It exited at v = v
v versus t is LINEAR (constant acceleration)
Therefore Vaverage = v/2
L = Vaverage * t
so
t = L/Vaverage = 2 L / v
t = 2 * 1.10 / 16.0
It exited at v = v
v versus t is LINEAR (constant acceleration)
Therefore Vaverage = v/2
L = Vaverage * t
so
t = L/Vaverage = 2 L / v
t = 2 * 1.10 / 16.0
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