3 years ago

Does anyone know how to find the answer key to this?

Physics

1 answer:

Mrrafil [7]3 years ago

8 0

It’s better to donintuourself it’s better to do it yourself and learn it

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Lorico [155]

Answer:

what?

Explanation:

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3 years ago

You are driving at the speed of 27.7 m/s (61.9764 mph) when suddenly the car in front of you (previously traveling at the same s

densk [106]

Here when car in front of us applied brakes then it is slowing down due to frictional force on it

So here we can say that friction force on the car front of our car is given as

$F_f = \mu m g$

So the acceleration of car due to friction is given as

$F_{net} = - \mu mg$

$a = \frac{F_{net}}{m}$

$a = -\mu g$

now it is given that

$\mu = 0.868$

$g = 9.81 m/s^2$

so here we have

$a = -0.868 * 9.81$

$a = -8.52 m/s^2$

so the car will accelerate due to brakes by a = - 8.52 m/s^2

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4 years ago

3. Elements are organized on the<br><br> according to their

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4 years ago

A coin is located 35.0 mm from the center of a turntable which accelerates from rest to a speed of 7.95 rad/s in 0.270 s. What i

beks73 [17]

The minimum coefficient of friction to avoid slippage of the coin is 0.23.

<h3>Minimum coefficient of friction</h3>

The minimum coefficient of friction can determined from the maximum speed of the coin.

ma = μmg

mv²/r = μmg

v²/r = μg

v² = μgr

μ = v²/(gr)

μ = (ωr)²/(gr)

μ = ω²r/g

μ = (7.95² x 0.035)/(9.8)

μ = 0.23

Learn more about coefficient of friction here: brainly.com/question/20241845

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Papessa [141]

We use them to survive, such as for oxygen, food, and shelter.

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4 years ago

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