Physics: Awheel accelerates uniformly from rest to a rotational speed of 10 rad/s in 5 s. what is its angular acceleration?

Awheel accelerates uniformly from rest to a rotational

Ответ:

kaieshaweston

31.12.2021

Physics

angular acceleration= $2 \frac{rad}{s^{2} }$

Explanation:

Kinematic equation for uniformly accelerated circular motion:

$wf=wi+\alpha *t$

wf=final angular speed $(\frac{rad}{s} )$

wi=initial angular speed $(\frac{rad}{s} )$

$\alpha$ = angular acceleration $(\frac{rad}{s^{2} } )$

We replace wf=10 $\frac{rad}{s}$ ,wi=0, t=5s in the equation(1):

$10=0+\alpha *5$

$\alpha =\frac{10}{5}$

$\alpha =2 \frac{rad}{s^{2} }$

The angular acceleration is 2 $\frac{rad}{s^{2} }$

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Ответ:

xmanavongrove55

09.02.2021

Physics

Cold air. This is because there is more water in hot air due to its capacity for humidity and the water particles are actually less massive than the particles in cold air.

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Awheel accelerates uniformly from rest to a rotational speed of 10 rad/s in 5 s. what is its angular acceleration?

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