Compute the rotational inertia of the pulley

Assignment Help Physics
Reference no: EM1386869

Q. A solid disk of unknown mass and known radius R is used as a pulley in a lab experiment, as shown above. A small block of mass m is attached to a string, the other end of which is attached to the pulley and wrapped around it several times. The block is mass m is free from rest and takes a time t to fall the distance D to the floor.

(a.) Compute the linear acceleration a of the falling block in terms of the given quantities. 
(b.) The time t is measured for various heights D and the data are recorded in the following table. D (m) = 0.5, 1, 1.5, 2, and the corresponding times are t(s) = .68, 1.02, 1.19, 1.38
(i) what quantities must be graphed in order to best determine acceleration of the block? Describe your reasoning. 
(ii.) On the grid below, plot the quantities determined in b. i., label the axes, and Illustrate the best fit line to your data.
(iii.) Use your graph to compute the magnitude of the acceleration.
(c.) Compute the rotational inertia of the pulley in terms of m, R, a, and fundamental constants.
(d.) The value of acceleration found in (b)iii, along with numerical values for the given quantities and your answer to (c), can be used to determine the rotational inertia of the pulley. The pulley is removed from its support and its rotational inertia is found to be greater than this value. Give an explanation for this discrepancy.

Reference no: EM1386869

Questions Cloud

Republic and ecclesiazusae and cloud : Discuss Aristophanes plays the Ecclesiazusae and The Cloud as attempts to make Socrates look ridiculous. Do they succeed? On the other hand, does Aristophanes have to change Socrates in order to make fun of Socrates?
What is the frequency of the e string : The tuner starts with the tension in the E string a little low, after that tightens it. What is the frequency of the E string while she hears four beats per second.
Which of the following do you believe is the primary reason : Which of the following do you believe is the primary reason for over diversification? Industrial policies, such as taxes and antitrust regulation
Explain book constructor to accept and initialize data : Create and execute the class called Book which contains instance data for title, author, publisher, and copyright date. Explain the Book constructor to accept and initialize this data.
Compute the rotational inertia of the pulley : The value of acceleration found in (b)iii, along with numerical values for the given quantities and your answer to (c), can be used to determine the rotational inertia of the pulley. The pulley is removed from its support and its rotational inerti..
Calculate the mean absolute deviation : Calculate the mean absolute deviation (MAD) for the forecasts made by each technique in periods 4-12. Which forecasting method do you prefer?
Examine the model which bruce tuckman designed decades ago : Examine the model which Bruce Tuckman designed decades ago which is still considered a major work and is used today. Use the Library to review the Tuckman model and decide illustrates what phase you are in and the reasons for your conclusion.
Explain the phenotypes obtained in the f2 generation : Explain the phenotypes obtained in the F2 generation. Analyze the phenotypes and sexes of each fly. Is there a sex and phenotype combination that is absent or underrepresented?
Does southwest airlines have a durable competitive advantage : From its humble roots, Southwest Airlines has emerged as a major airline in the US In an industry where failure is more common than success. Does Southwest Airlines have a durable competitive advantage?

Reviews

Write a Review

 

Physics Questions & Answers

  How high is the sun above the horizon

You can turn the crank at a maximum rate of 3 turns per second, but hand crank is connected to the coil through a set of gears that makes the coil spin at a rate 6 times larger than the rate at which you turn the crank. What is the maximum emf you ca..

  How fast should the air flow over upper surface of the wing

The car now stops, and the four people get out. By how much does the car body rise on its suspension owing to this reduce in weight.

  Why the different values for different surfaces

Bruce stands on a bank beside a pond, grasps the end of a 10.00-m long rope attached to a nearby tree and swings out to drop into the water. If the rope starts at an angle of 36° with the vertical, what is Bruce's speed at the bottom of swing.

  What is suzies average acceleration

She notices a group of workers down the walkway who have suddenly blocked her path, and she makes a quick stop in 1.8 seconds. What is Suzies average acceleration

  Water in an electric teakettle is boiling

A golf ball is struck with a five iron on level ground. It lands 92.7 away 4.10 later. What were (a) direction and (b) magnitude of the initial velocity.

  Find the magnitude and direction of the acceleration

Find the magnitude and direction of the acceleration. A 2.60 kg steel ball strikes a wall with a speed of 10.0 m/s at an angle of 60.0° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.19..

  What is the magnitude of the electric force on one of mass

A closely wound rectangular coil of 80 turns has dimensions 25 rm cm by 40 rm cm. The plane of the coil is rotated from a position in which it makes an angle of 37 degrees with a magnetic field of 1.10 rm T to a position perpendicular to the field..

  When does the shoe reach ground

An object whose weight is 100 Ibf experiences a decrease in kinetic energy of 500 ft. Ibf and an increase in potential energy of 1600 ft. Ibf. The initial velocity and elevation of the object, each relative to surface of the earth, are 50 ft/s and 40..

  What is the least coefficient of friction

What is the least coefficient of friction between the beam and the wall for the beam to remain in static equilibrium.

  What is the rate of energy production in watts

A skier moving at 4.50 m/s encounters a long, rough horizontal patch of snow having coefficient of kinetic friction 0.230 with her skis. How far does she travel on this patch before stopping.

  What will be the resulting speed of the boat

What will be the resulting speed of the boat. A 74 kg fireman slides down a 4-m pole by applying a frictional force of 384 N against the pole with his hands. If he slides from rest, how fast is he moving once he reaches ground.

  Find the magnitude and direction of the average force

A 46 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of - 1.2 m/s. Her hands are in contact with the wall for 0.8 s. Ignore friction and wind resistance.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd