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iogann1982 [59]
3 years ago
14

Does the speedometer of a car read average speed or instantaneous speed?

Physics
1 answer:
aleksandrvk [35]3 years ago
8 0
Speedometer of car read instantaneous speed of course. Its because when you stop it instantaneous show 0. If speedometer show average speed there should be different value than 0 (much greater) just when you stop.
Maybe there are car with speedometer with average speed but the time from which the average is taken is extremely small. Its simply instantaneous speed.
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consider the motion along the horizontal direction :

v₀ = initial velocity in horizontal direction as the ball rolls off the table = 3.0 m/s

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X = v₀ t + (0.5) a t²

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consider the motion of the ball along the vertical direction

v₀ = initial velocity in vertical direction as the ball rolls off the table = 0 m/s

Y = vertical displacement of the ball = height of the table = h

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using the kinematics equation

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h = 2.2 m


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