Purchase Solution

Calculating angular speed and revolutions

Not what you're looking for?

Ask Custom Question

An electric ceiling fan is rotating about a fixed axis with an initial angular velocity of 0.200 rev/s . The angular acceleration is 0.911 rev/s^2 . Its blades form a circle of diameter 0.720m .

A) Compute the angular velocity of the fan after time 0.201 s has passed. Express your answer numerically in revolutions per second.

B) Through how many revolutions has the blade turned in the time interval 0.201 s

C) What is the tangential speed v_tan (in m/s) of a point on the tip of the blade at time 0.201 s

D) What is the magnitude of the resultant acceleration (in m/s^2) of a point on the tip of the blade at time 0.201 s ?

Purchase this Solution
Solution Summary

This solution is provided in an attached .jpg file. It includes calculations for finding revolutions per second, angular velocity, and acceleration. A diagram is provided to enhance learning.

Purchase this Solution
Free BrainMass Quizzes
Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

Basic Physics

This quiz will test your knowledge about basic Physics.

Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

View More Free Quizzes
Related BrainMass Solutions

  • Calculating Angular Acceleration and Revolutions

    15306 Calculating Angular Acceleration and Revolutions Question: The blades of a fan running at low speed turn at 250 rpm. When the fan is switched to high speed, the rotation rate increases uniformly to 350 rpm in 5.75 s. a.)

  • Magnetic computer Disk

    Calculating the number of revolutions of a magnetic computer disk

  • Angular Velocity And Acceleration

    Calculate (a) its angular acceleration, assumed constant, and (b) the total number of revolutions the engine makes in this time. 2) Pilots can be tested for the stresses of flying high speed jets in a whirling "human centrifuge," Which takes 1.0 min

  • Acceleration, angular speed and revolutions

    76534 Acceleration, angular speed and revolutions The tub of a washer goes into its spin-dry cycle, starting from rest and reaching an angular speed of 5.0 rev/s in 8.0 sec. a) What is the average acceleration in radians/sec?

  • Physics: Revolutions of a Flywheel

    Need to find: Angular speed after t = 29.0 seconds (a) Find the final angular speed. Need to find the angular acceleration Δ first and then the final angular speed.

  • Physics - Mechanics - Rotational Motion

    Using energy principles and neglecting friction, find the angular speed after the grindstone has made 15.0 revolutions. Torque applied = Moment of inertia x angular acceleration 25 = 0.13(alpha). So, alpha = 25/0.13 = 192.31 rad/s^2.

  • Angular Deceleration of a Centrifuge

    (a) If its initial angular speed was 3410 rpm, what is the magnitude of its angular deceleration? (b) How many revolutions did the centrifuge complete after being turned off?

  • angular velocity and angular acceleratoin

    If the angular acceleration is constant, how many revolutions does the propeller undergo during this time? A grindstone of radius 4.0 m is initially spinning with an angular speed of 8.0 rad/s.

  • Angular acceleration, tangential speed, and angle turned

    14841 Angular Acceleration, Tangential Speed, and Angle Turned A flywheel whose diameter D= 1.2 m, is initially rotating at Wo= 200 revolutions per minute.

View More Related Solutions