The tires of a car make 70 revolutions as the car reduces its speed uniformly from 90.0 km/hkm/h to 65.0 km/hkm/h. The tires have a diameter of 0.88 mm. What was the angular acceleration of the tires? If the car continues to decelerate at this rate, how much more time is required for it to stop? If the car continues to decelerate at this rate, how far does it go? Find the total distance.

Q: A cooling fan is turned off when it is running at 930 rev/min. It turns 1,500 revolutions before it…

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Q: A computer drive disk with a radius of 0.065 m is turned on starting from rest with a constant…

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Q: When a fan is turned off, it's angular speed decreases from 168 rpm to 64.0 rpm in 6.08 s.  a) What…

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Q: A cooling fan is turned off when it is running at 3071 rev/min. It turns 1291 revolutions before it…

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Q: Your 64 cm diameter car tire is rotating at 3.8 rev/s when suddenly you press down hard on the…

A: SOlution: Given that  64 cm diameter car tire is rotating at 3.8 rev/s After traveling 270 m, the…

Q: An 8.0-cm diameter hard disk spinning at 7200 rpm can stop in 19 revolutions.   a) What is the…

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Q: A motorcycle goes from rest to 60 mph in 3 s.  A motorcycle tire has a radius of 0.6 m.  How many…

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Q: A ceiling fan rotates at the rate of 30 degrees every .63 seconds. What is the angular speed of the…

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Q: wheel rotates through an angle of 324° as it slows down from 87.4 rpm to 18.7 rpm (revolutions per…

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Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,450 rev/min. When switched…

A: Given data:  Initial angular velocity (ω0) = 3450 rev/min Angular displacement (Δθ) = 52.0…

Q: The disk in a computer disk drive spins up from rest to a final angular speed of 5400 rpm in 2.00 s.…

A: Given Data: The final angular speed of a disk is, ωf=5400 rpm The time required to spin a disk is,…

Q: An electric fan makes 300 revolutions per minute. If it comes to a stop after 12 secs, what is the…

A: Given: The initial angular speed is 0 rad/s. The final angular speed is 300 revs/s. The time…

Q: A cooling fan is turned off when it is running at 820 rev/min. It turns 500 revolutions before it…

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Q: The blades in a blender rotate at a rate of 6300 rpm. When the motor is turned off during operation,…

A: Given that the blades in a blender rotate at 6300 rpm.

Q: computer hard disk starts from rest, then speeds up with an angular acceleration of 190 rad/s2 until…

A: Using equation of motion for angular variables, we can get the desired answers.

Q: An optical disk drive in a computer can spin a disk at up to 10,000 rpm. If a particular disk is…

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Q: An automatic dryer spins wet clothes at an angular speed of 15 rad/s. Starting from rest, the dryer…

A: Given data: Initial angular speed, ω0=0 (since starting from rest) Final angular momentum, ωf=15…

Q: As you drive down the road at 18 m/s, you press on the gas pedal and speed up with a uniform…

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Q: When a carpenter shuts off his circular saw, the 10.0-inch-diameter blade slows from 4385 rpm to…

A: Given:Diameter of the blade = 10 inchRadius of the blade = 5 inchAngular velocity = 4385 rpmTime…

Q: The end of the cutting cord on a gas-powered weed cutter is 0.21 m in length. If the motor starts…

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Q: The angular speed of a fan decelerates from 11.6 rad/s to 7.8 rad/s in 4.5 s. What is the magnitude…

A: Given  Initial angular velocity ωi=11.6rad/s Final angular velocity ωf=7.8rad/s Time t=4.5s

Q: An engine flywheel initially rotates counterclockwise at 6.83 rotations/s. Then, during 25.1 s, its…

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Q: A truck with 0.420 m radius tires travels at 32.0 m/s. What is the angular velocity of the rotating…

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Q: You have a horizontal grindstone (a disk) that is 88 kg, has a 0.31 m radius, is turning at 89 rpm…

A: GivenMass of disk ,m=88 kgRadius of disk ,r=0.31 mInitial angular velocity ,ωi=89 rpmForce applied…

Q: The tires of a car make 85.0. revolutions as the car reduces its speed uniformly from 90.0 km/hr to…

A: Given Angular displacement of the tires is θ=85.0 rev=(85.0×2π) rad=534.07 rad Initial speed is…

Q: A computer hard disk starts from rest, then speeds up with an angular acceleration of 190 rad/s2…

A: We have to use some basic formula here

Q: A rock tied to the end of the string swings at a constant angular rate. If you are told that the…

A: The centripetal force is The mass of the rock is The length of the string is

Q: The bus's wheels have a radius 26 cm. The bus starts at rest and accelerates at a constant speed…

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Q: high-speed drill reaches 2300 rpm in 0.52 s. What is the drill's angular acceleration? Through how…

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Q: When a fan is turned off, its angular speed decreases from 168 rpm to 64.0 rpm in 6.08 s.

A: Given: Initial angular speed of the fan ω∘ = 168 rpm final angular velocity of the fan ω = 64.0 rpm…

Q: The blades in a blender rotate at a rate of 6200 rpm . When the motor is turned off during…

A: Given: The intial angular speed is 6200 rpm. The final angular speed is 0 rad/s. The time interval…

Q: A large centrifuge is used to expose aspiring astronauts to accelerations similar to those…

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Q: A centrifuge in a biology laboratory rotates at an angular speed of 3,500 rev/min. When switched…

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.