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frutty [35]
3 years ago
8

If a car starts from a stop, and hits 27 meters per second in 8 seconds, what is its acceleration?​

Physics
1 answer:
yarga [219]3 years ago
7 0

Hello,

Vinitial = 0

V final = 27 m/s

time = 8 seg

then

a = Delta(V) / Delta(t),

in other words:

a = (27-0)/8

a = 27/8

a= 3.375 m/s^2

Best regards

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A 120 g, 8.0-cm-diameter gyroscope is spun at 1000 rpm and allowed to precess. What is the precession period?
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To solve this problem we will derive the expression of the precession period from the moment of inertia of the given object. We will convert the units that are not in SI, and finally we will find the precession period with the variables found. Let's start defining the moment of inertia.

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M = Mass

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The precession frequency is given as

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The value for our angular velocity is not in SI, then

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