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masya89 [10]
3 years ago
5

Why does the unit of time enter twice in the unit of acceleration?

Physics
1 answer:
Aleks04 [339]3 years ago
8 0
Acceleration is the measurement that describes the rate of the changing the speed of the object. Mathematically, that is a = s / t
where a is acceleration, s is speed and t is time. Further, speed is the rate of changing the distance, s = d / t
With this, the unit of time is entered twice in the equation. 
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Answer:

a) 1.94 \frac{rad}{s}

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Explanation:

a)

Becuse the centrifuge rotates in circular motion, there's an angular acceleration tha simulates high gravity accelerations

a_{rad}=\omega r^{2}

with r the radius and ω the amgular velocity, in or case a_rad=3.5g so:

3.5g=\omega r^{2} and g=9.8\frac{m}{s^{2}}

solving for ω:

\omega=\frac{3.5g}{r^2}=\frac{3.5*9.8}{4.2^2}

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b) Linear speed (v) and angular speed are related by:

v=\omega r =(1.94)(4.7)

v= 9.12\frac{m}{s}

c) The apparent weigth is pointing towards the center of the circle, becuse angular acceleration is pointing in that direction.

8 0
2 years ago
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Xelga [282]

Answer:

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7 0
3 years ago
Suppose you ran 53 km in 67 min. With what speed did you run?
melomori [17]

Answer:

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What is the difference between weight and mass? Give an example of how they are different.
marusya05 [52]
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3 years ago
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