4 years ago

An object's inertia causes it to come to a rest position. TRUE OR FAULSE

Physics

1 answer:

Iteru [2.4K]4 years ago

7 0

FAULSE!!!!!
false^
learn basic spelling bro

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3 years ago

The tub of a washing machine goes into its spin cycle, starting from rest and gaining angular speed steadily for 10.0 s, at whic

ioda

Answer:

69 revolutions

Explanation:

given,

initial angular velocity = 0

final angular velocity = 6 rev/s

when safety switch turned off

tub smoothly slows to rest in (t)= 13 s

total revolution of tub = ?

angular acceleration = $\dfrac{\omega_f-\omega_0}{t}$

angular acceleration = $\dfrac{6-0}{10}$

= 0.6 rev/s²

now,

$\theta = \omega_i t +\dfrac{1}{2}\alpha t^2$

$\theta = 0+\dfrac{1}{2}\times 0.6 \times 10^2$

= 30 revolution

now,

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angular acceleration = $\dfrac{\omega_f-\omega_0}{t}$

angular acceleration = $\dfrac{0-6}{13}$

= -0.462 rev/s²

now,

$\theta = \omega_i t +\dfrac{1}{2}\alpha t^2$

$\theta = 6 \times 13 -\dfrac{1}{2}\times 0.462 \times 13^2$

= 39 revolution

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tub will rotate 69 revolutions

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