laundry opensperson dolngthe lid, and a safety switch turns off the washer. Thetub slows to rest in 12.0 s. Through how many revolu-tions does the tub turn during the entire 20-s interval?Assume constant angular acceleration while it is start-1ing and stopping11. A car initially traveling at 29.0 m/s undergoes a con-stant negative acceleration of magnitude 1.75 m/safter its brakes are applied. (a) How many revolutionsdoes each tire make before the car comes to a stop,assuming the car does not skid and the tires have radiiof 0.330 m? (b) What is the angular speed of the wheelswhen the car has traveled half the total distance?12. A 45.0-cm diameter disk rotates with a constant angu-lar acceleration of 2.50 rad/s. It starts from rest at t=0, and a line drawn from the center of the disk to apoint Pon the rim of the disk makes an angle of 57.3find

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Asked Nov 15, 2019
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question 11 please

laundry opens
person dolng
the lid, and a safety switch turns off the washer. The
tub slows to rest in 12.0 s. Through how many revolu-
tions does the tub turn during the entire 20-s interval?
Assume constant angular acceleration while it is start-
1
ing and stopping
11. A car initially traveling at 29.0 m/s undergoes a con-
stant negative acceleration of magnitude 1.75 m/s
after its brakes are applied. (a) How many revolutions
does each tire make before the car comes to a stop,
assuming the car does not skid and the tires have radii
of 0.330 m? (b) What is the angular speed of the wheels
when the car has traveled half the total distance?
12. A 45.0-cm diameter disk rotates with a constant angu-
lar acceleration of 2.50 rad/s. It starts from rest at t=
0, and a line drawn from the center of the disk to a
point Pon the rim of the disk makes an angle of 57.3
find
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laundry opens person dolng the lid, and a safety switch turns off the washer. The tub slows to rest in 12.0 s. Through how many revolu- tions does the tub turn during the entire 20-s interval? Assume constant angular acceleration while it is start- 1 ing and stopping 11. A car initially traveling at 29.0 m/s undergoes a con- stant negative acceleration of magnitude 1.75 m/s after its brakes are applied. (a) How many revolutions does each tire make before the car comes to a stop, assuming the car does not skid and the tires have radii of 0.330 m? (b) What is the angular speed of the wheels when the car has traveled half the total distance? 12. A 45.0-cm diameter disk rotates with a constant angu- lar acceleration of 2.50 rad/s. It starts from rest at t= 0, and a line drawn from the center of the disk to a point Pon the rim of the disk makes an angle of 57.3 find

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Expert Answer

Step 1

(a) Write the kinematic relation between angular velocity and angular acceleration

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о— о,3 3 2ае и =2 (й-и) 2ar

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Step 2

Substitute the given values

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-(29.0 m/s) е 2(-1.75 m/s(0.330 m) 1 rev =(728.138 rad) 27T rad =115.8 rev 116 rev

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Step 3

(b) Write the kinematic relation between angular velocity and angul...

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2-a2a 2 2

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Science

Physics

Angular Motion