Physics Physics Practice Problems Solutions Library

# Equations of Rotational Motion Solutions Library

Access 34 Equations of Rotational Motion video and text solutions to help you complete your homework. Need to revisit the concept? Watch our Equations of Rotational Motion learn videos.

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34 solutions

Equations of Rotational Motion

#### Q. The tires of a car make 77 revolutions as the car reduces its speed uniformly from 92.0 km/h to 60.0 km/h. The tires have a diameter of 0.84 m.1. W...

Solved • Feb 11, 2021

Equations of Rotational Motion

#### Q. The 3.50-cm-long second hand on a watch rotates smoothly.What is its angular velocity?What is the speed of the tip of the hand?

Solved • Jan 21, 2021

Equations of Rotational Motion

#### Q. The kinematic equations (motion with constant acceleration) for motion in one dimension are:Where v is velocity and a is acceleration. For rational...

Solved • Nov 2, 2020

Equations of Rotational Motion

#### Q. Dario, a prep cook at an Italian restaurant, spins a salad spinner and observes that it rotates 20.0 times in 5.00 seconds and then stops spinning ...

Solved • Oct 12, 2020

Equations of Rotational Motion

#### Q. An old-fashioned LP record rotates at 33 rpm. What is its frequency in rev/s? What is its period?

Solved • Sep 30, 2020

Equations of Rotational Motion

#### Q. Rotational motion with a constant nonzero acceleration is not uncommon in the world around us. For instance, many machines have spinning parts. Whe...

Solved • Sep 30, 2020

Equations of Rotational Motion

#### Q. Two blocks, which can be modeled as point masses, are connected by a massless string which passes through a hole in a frictionless table. A tube ex...

Solved • Sep 22, 2020

Equations of Rotational Motion

#### Q. Rotational motion with a constant nonzero acceleration is not uncommon in the world around us. For instance, many machines have spinning parts. Whe...

Solved • Jul 23, 2020

Equations of Rotational Motion

#### Q. A bicyclist notes that the pedal sprocket has a radius of rp = 11 cm while the wheel sprocket has a radius of rw = 6.5 cm. The two sprockets are co...

Solved • Jul 16, 2020

Equations of Rotational Motion

#### Q. Dario, a prep cook at an Italian restaurant, spins a salad spinner 20.0 times in 5.00 seconds and then stops spinning it. The salad spinner rotates...

Solved • Jul 15, 2020

Equations of Rotational Motion

#### Q. How would reversing the wheel’s initial direction of rotation affect the result?a. The seated demonstrator would rotate clockwise with increased an...

Solved • Jul 14, 2020

Equations of Rotational Motion

#### Q. During a very quick stop, a car decelerates at 7.00 m/s.(a) What is the angular acceleration of its 0.280-m-radius tires, they do not slip on the p...

Solved • Jul 13, 2020

Equations of Rotational Motion

#### Q. A computer disk drive is turned on starting from rest and has a constant angular acceleration. If it took 0.0865 s for the drive to make its second...

Solved • Jul 1, 2020

Equations of Rotational Motion

#### Q. Rotational motion with a constant nonzero acceleration is not uncommon in the world around us. For instance, many machines have spinning parts. Whe...

Solved • Jun 5, 2020

Equations of Rotational Motion

#### Q. The angular velocity (in rpm) of the blade of a blender is given in the figure.a. If θ=0rad at t=0s, what is the blade's angular position at t=20s?...

Solved • Jun 2, 2020

Equations of Rotational Motion

#### Q. A gyroscope slows from an initial rate of 32.0 rad/s at a rate of 0.700 rad/s2.(a) How long does it take to come to rest?(b) How many revolutions d...

Solved • May 21, 2020

Equations of Rotational Motion

#### Q. A rotating space station is said to create "artificial gravity" - a loosely-defined term used for an acceleration that would be crudely similar to ...

Solved • May 19, 2020

Equations of Rotational Motion

#### Q. Dario, a prep cook at an Italian restaurant, spins a salad spinner 20.0 times in 5.00 seconds and then stops spinning it. The salad spinner rotates...

Solved • May 13, 2020

Equations of Rotational Motion

#### Q. A disk at rest experiences a constant angular acceleration for t=15 s, at the end of which it is spinning with a frequency of f = 75rpm. Please ans...

Solved • Apr 30, 2020

Equations of Rotational Motion

#### Q. An old-fashioned vinyl record rotates on a turntable at 45 rpm. a. What is the angular speed in rad/s?b. What is the period of motion?

Solved • Apr 23, 2020

Equations of Rotational Motion

#### Q. A computer disk drive is turned on starting from rest and has a constant angular acceleration. If it took 0.750 seconds for the drive to make its s...

Solved • Apr 22, 2020

Equations of Rotational Motion

#### Q. An airplane propeller is rotating at 1910 rev/min.a) Compute the propellers angular velocity in rad/s.b) How long in seconds does it take for the p...

Solved • Mar 18, 2019

Equations of Rotational Motion

#### Q. At t=0 a grinding wheel has an angular velocity of 26.0 rad/s . It has a constant angular acceleration of 31.0 rad/s2 until a circuit breaker trips...

Solved • Mar 18, 2019

Equations of Rotational Motion

#### Q. A CD-ROM is accelerated from rest with constant angular acceleration αo.Find the time for the disk to complete the first full loop. [a] t = 1/2  (...

Solved • May 31, 2017

Equations of Rotational Motion

#### Q. A wheel accelerates from rest to 59 rad/s at a rate of 74 rad/s2. Through what angle (in radians) did the wheel turn while accelerating? A) 24 rad...

Solved • Mar 6, 2017

Equations of Rotational Motion

#### Q. A fan is turned off, and its angular speed decreases from 10.0 rad/s to 6.3 rad/s in 5.0 s.  What is the magnitude of the angular acceleration of t...

Solved • Mar 6, 2017

Equations of Rotational Motion

#### Q. A car is initially driving at 20 m/s when the driver sees a dog in the road 100 m in front of him. In order to break in time to not hit the dog, wh...

Solved • Mar 1, 2017

Equations of Rotational Motion

#### Q. A disk is rotating at 150 rpm. Answer the following questions: (a) What angle, in radians, does the disk rotate through in 25 s if the angular spe...

Solved • Mar 1, 2017

Equations of Rotational Motion

#### Q. A wheel of radius 0.300 m is mounted with frictionless bearings about an axle through its center. A light rope is wrapped around the wheel around t...

Solved • Feb 7, 2017

Equations of Rotational Motion

#### Q. A large wheel of radius 0.300 m is initially at rest and then starts to rotate with a constant angular acceleration of 0.400 rad/s2 about an axle a...

Solved • Feb 7, 2017

Equations of Rotational Motion

#### Q. A wheel with radius 0.200 m starts from rest at t = 0 and then starts to rotate with constant angular acceleration about an axis at its center. At ...

Solved • Feb 7, 2017

Equations of Rotational Motion

#### Q. A wheel with radius 0.200 m starts from rest at t = 0 and then starts to rotate with constant angular acceleration about an axis at its center. At ...

Solved • Feb 7, 2017

Equations of Rotational Motion

#### Q. A wheel with radius 0.20 m starts from rest and turns through 8.0 revolutions in 5.0 s. At t = 5.0 s, what is the radial acceleration of a point on...

Solved • Feb 6, 2017

Equations of Rotational Motion

#### Q. A wheel with radius 0.20 m starts from rest and turns through 8.0 revolutions in 5.0 s. At t = 5.0 s, what is the tangential acceleration of a poin...

Solved • Feb 6, 2017