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Alekssandra [29.7K]
3 years ago
6

A car tire rotates with an average angular speed of 29 rad/s. In what time interval will the tire rotate 3.5 times? ​

Physics
1 answer:
meriva3 years ago
8 0

Answer:

"0.758315 sec" is the appropriate choice.

Explanation:

The given values are:

Angular speed,

= 29 rad/s

or,

= \frac{29}{2 \pi} \ rps

Tire rotates,

= 3.5 times

Now,

The time interval will be:

⇒  \Delta t=\frac{3.5}{\frac{29}{2 \pi} }

⇒       =\frac{2 \pi\times 3.5}{29}

⇒       =\frac{21.99}{29}

⇒       =0.758315 \ sec

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The distance between Jane and Mary after 4.08 seconds is 33.58 m.

<h3>Resultant velocity of Mary and Jane</h3>

Vertical component of the velocity;

Jane: Vy1 = V sinθ

Vy1 = 5.07 m/s  x  sin(60.2)

Vy1 = 4.4 m/s

Horizontal components of the velocity;

Jane: Vx1 = V cos θ

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<h3>Time taken before they are 24.7 m apart</h3>

t = 24.7 m / 8.23 m/s

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Velocity of Jane relative to marry is 4.4 m/s in y-direction and 6.95 m/s in x direction.

<h3>Distance between Jane and Mary after 4.08 seconds</h3>

d = vt

d = 8.23 m/s  x 4.08 s

d = 33.58 m

Learn more about relative velocity here: brainly.com/question/17228388

#SPJ1

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