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3 years ago

13

(I) Pilots can be tested for the stresses of flying high-speed jets in a whirling "human centrifuge," which takes 1.0 min to tur

n through 23 complete revolutions before reaching its final speed. (a) What was its angular acceleration (assumed constant), and (b) what was its final angular speed in rpm?

1 answer:

Eddi Din [679]3 years ago

3 0

Answer:

The angular acceleration is $0.08rad/s^{2}$ final angular speed is $46rpm$

Explanation:

Here we know that

$\theta= w_{o}t+\frac{1}{2}\alpha t^{2}$ .............. 1

$\theta = 23\times 2\pi rad$

$w_{0}=0\\t=1min =60s$

Upon substituting these values in equation 1 we get $\alpha =0.08rad/s^{2}$ .

For calculating angular velocity we know that

$w=w_{o} + \alpha t$ .

$w=\frac{46\pi}{30}rad/s = \frac{23\pi\times60}{15\times 2 \pi} rpm = 46rpm$

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The angle between the electric field and the axis of the filter is 54⁰

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2 years ago

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Answer:

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Replacing Equation 3 in Equation 4:

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