A uniform cylinder of mass 90 kg and radius 0.4 m is mounted so that it turns
Question:
A uniform cylinder of mass 90 kg and radius 0.4 m is mounted so that it turns without friction on its fixed symmetry axis. It is rotated by a drive belt that wraps around its perimeter and exerts a constant torque. At time t = 0, its angular velocity is zero. At time t = 25 s, its angular velocity is 500 rev/min.
(a) What is its angular momentum at t = 25 s?
(b) At what rate is the angular momentum increasing?
(c) What is the torque acting on the cylinder?
(d) What is the magnitude of the force acting on the rim of the cylinder?
Step by Step Answer:
a L I I 12mr 2 L 12 90 04 2 500 260 kgm ...View the full answer
Fundamentals of Ethics for Scientists and Engineers
ISBN: 978-0195134889
1st Edition
Authors: Edmund G. Seebauer, Robert L. Barry
Related Video
Angular movements are produced when the angle between the bones of joint changes. There are several different types of angular movements, including flexion, extension, hyperextension, abduction, adduction, and circumduction. Flexion, or bending, occurs when the angle between the bones decreases. Moving the forearm upward at the elbow or moving the wrist to move the hand toward the forearm are examples of flexion. The extension is the opposite of flexion in that the angle between the bones of a joint increase.
Students also viewed these Mechanics questions
-
A uniform cylinder of mass m = 8.0 kg and radius R = 1.3 cm (Fig.1.60) starts descending at a moment t = 0 due to gravity. Neglecting the mass of the thread, find: (a) The tension of each thread and...
-
A uniform cylinder of radius R is spinned about its axis to the angular velocity ωo and then placed into a corner (Fig. 1.58).The coefficient of friction between the corner walls and the...
-
A uniform cylinder of radius R and mass M can rotate freely about a stationary horizontal axis O (Fig. 1.59). A thin cord of length l and mass m is wound on the cylinder in a single layer. Find the...
-
Explain what quality management knowledge and skills an auditor should possess when auditing
-
Ortel Telecom sells telecommunication products and services to a variety of small businesses. Two of Ortel's key clients are Square and Cloudburst, both fast-growing technology start-ups located in...
-
An aging analysis of Yamoto Limited's accounts receivable at December 31, 2015 and 2014 showed the following: Additional information: 1. At December 31, 2014, the unadjusted balance in Allowance for...
-
Find the response of a simple pendulum numerically by solving the linearized equation: \[\ddot{\theta}+\frac{g}{l} \theta=0\] with \(\frac{g}{l}=0.01\) and plot the response, \(\theta(t)\), for \(0...
-
Hira Hardware has four employees who are paid on an hourly basis plus time-and-a half for all hours worked in excess of 40 a week. Payroll data for the week ended March 15, 2012, are presented below....
-
For this activity, you will be using a hypothetical scenario about Chris and Jamie and their legal troubles stemming from an incident involving theft. Chris and Jamie were shopping when Chris...
-
During the first full week of 2019, the Payroll Department of Quigley Corporation is preparing the Forms W-2 for distribution to its employees along with their payroll checks on January 4. In this...
-
A 1.8-kg particle moves in a circle of radius 3.4 m. The magnitude of its angular momentum relative to the center of the circle depends on time according to L = (4 N m)t. (a) Find the magnitude of...
-
In Figure, the incline is frictionless and the string passes through the center of mass of each block. The pulley has a moment of inertia I and a radius r. (a) Find the net torque acting on the...
-
Huntz Food Products is attempting to decide if it should introduce a new line of salad dressings called Special Choices. The company can test market the salad dressings in selected geographic areas...
-
Why do mixed economies split the ownership of land, factories, and other economic resources rather equally between private and government ownership?
-
Which of the following is true regarding permanent funds? a. They use modified accrual accounting. b. Their principal cannot be expended. c. Dividend and interest income from their investments are...
-
Which of the following statements is correct? I. In the governmentwide financial statements, internal service fund activities are reported in the Governmental Activities column. II. The total balance...
-
How does doing business in a totalitarian country differ from doing business in a democracy?
-
Where in the basic financial statements would you find a description of the measurement focus and the basis of accounting used in the governmentwide financial statements? a. In the statement of net...
-
Balls are attached to light rods and can move in horizontal circles as shown in Figure P7.17. Rank in order, from smallest to largest, the torques \(\tau_{1}\) to \(\tau_{4}\) about the centers of...
-
What are the 5 Cs of marketing channel structure?
-
All but two of the following solutions yield a precipitate when the solution is also made 2.00 M in Those two are (a) MgCl 2 (aq); (b) FeCl 3 (aq); (c) (NH 4 ) 2 SO 4 (aq); (d) Cu(NO 3 ) 2 (aq); (e)...
-
A thin rod of length l lies on the + x-axis with its left end at the origin. A string pulls on the rod with a force F directed toward a point P a distance h above the rod. Where along the rod should...
-
Balancing Act Attached to one end of a long, then, uniform rod of length L and mass M is a small blob of clay of the same mass M. (a) Locate the position of the center of mass of the system of rod...
-
You connect a light string to a point on the edge of a uniform vertical disk with radius R and mass M. The disk is free to rotate without friction about a stationary horizontal axis through its...
-
The wheels of a skateboard roll without slipping as it accelerates at 0.45 m/s down an 80-m-long hill. Part A If the skateboarder travels at 1.5 m/s at the top of the hill, what is the average...
-
A 2.30 g air-inflated balloon is given an excess negative charge, q = -3.50 10-8 C, by rubbing it with a blanket. It is found that a charged rod can be held above the balloon at a distance of d =...
-
A positive charge q = 2.60 C on a frictionless horizontal surface is attached to a spring of force constant k as in the figure shown below. When a charge of 42 = -8.350 C is placed 9.50 cm away from...
Study smarter with the SolutionInn App