During the launch from a board, a diver's angular speed about her center of mass changes from

Question:

During the launch from a board, a diver's angular speed about her center of mass changes from zero to 6.20 rad/s in 220ms. Her rotational inertia about her center of mass is 12.0 kg-m2. During the launch, what are the magnitudes of

(a) Her average angular acceleration and

(b) The average external torque on her from the board?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

See More Books

Question Posted: Jan 13, 2011 06:49 AM

See More Questions

The rotational inertia for a diver in a pike position is about 15.5 kg·m2; it is only 8.0 kg·m2 in a tuck position. (a) If the diver gives himself an initial angular momentum of 106...
A sanding disk with rotational inertia 1.2 x 10-3 kg m2 is attached to an electric drill whose motor delivers a torque of magnitude 16 N m about the central axis of the disk. About that axis and with...
A disk with a rotational inertia of 7.00 kg m2 rotates like a merry-go-round while undergoing a torque given by = (5.00 + 2.00t) N m. At time t = 1.00 s, its angular momentum is 5.00 kg.m2/s. What is...
Air temperature usually decreases with increasing altitude. However, during the winter, thanks to a phenomenon called thermal inversion, the temperature of air warmed by the sun in mountains above a...
a. Explain why Carson should be very interested in future interest rate movements. b. Given Carson's expectations, do you think that the company anticipates that interest rates will increase or...
Information on Hohenberger Company for 2017 follows: Total credit sales...................................................................................$1000000 Accounts receivable at December...
A thin rod carries charge Q distributed uniformly over its length L and is situated on the x-axis between x L/2.(a) Find the electric field at an arbitrary point (x, y).(Youll have to do separate...
Journalize the following assumed transactions of Ambient Productions: Feb 22 Issued 1,800 shares of $1.75 par common stock at $5 per share. Jun 25 Purchased 400 shares of treasury stock at $14 per...
A loan of $38,000 is paid off in 36 payments at the end of each month in the following way: Payments of $950 are made at the end of the month for the first 12 months. Payments of $950 + x are made at...
Mr B aged 52 years, has earned rupees 75,00,000 out of his business. His ex-wife gifted him a car worth rupees 8 lakh. He spent a total of rupees 20 lakh during a family trip. He won a lottery of 16...
The body in Figure is pivoted at O. Three forces act on it: FA = 10 N at point A, 8.0 m from O; FB = 16 N at B, 4.0 m from O; and FC = 19 N at C, 3.0 m from O. What is the net torque about O? FA 135...
If a 32.0 N-m torque on a wheel causes angular acceleration 25.0 rad/s2, what is the wheel's rotational inertia?
For the arrangement shown in Figure P18.64, /θ = 30.0°, the inclined plane and the small pulley are frictionless, the string supports the object of mass M at the bottom of the plane, and...
During the COVID-19 19 pandemic, 50 patients over the age of 60 were admitted to a hospital, where 25 patients were completely cured without needing to enter the intensive care rooms. The ages of 25...
In Exercises 5-20, find the range, variance, and standard deviation for the given sample data. Include appropriate units (such as "minutes") in your results. (The same data were used in Section 3-1,...
00 0.1 11 points eBook Smoky Mountain Corporation makes two types of hiking boots-the Xtreme and the Pathfinder. Data concerning these two product lines appear below: Selling price per unit Xtreme...
Computing Unit Cost Comacho Chemical Co. recorded costs for the month of $18,900 for materials, $44,100 for labor, and $26.250 for factory overhead. There was no beginning work in process, 8.000...
Problem Joe Fox is the manager of the Gear division and plans to submit a proposal for an expanded production area. Joe has projected various conditions for revenues and expense for the expansion,...
No matter how much we encourage individuals to plan their careers, at the end of the day it comes down to opportunity and chance.' Do you think that this comment is a fair reflection of the way that...
Consider the following cash flows in Table P5.5. (a) Calculate the payback period for each project. (b) Determine whether it is meaningful to calculate a payback period for project D. (c) Assuming...
Tennis racquets have sweet spots. If the ball hits a sweet spot then the player's arm is not jarred as much as it would be otherwise. Explain why this is the case.
A skier from rest at A (30 ft, O) and descends the smooth slope, which may be approximated by a parabola. If she has a weight of 120 lb, determine the normal force she exerts on the ground at the...
The small 2-lb collar starting from rest at A slides down along the smooth rod. During the motion, the collar is acted upon by force F = {10i + 6yj + 2zk} lb, where x, y, z are in feet. Determine the...
A ball having a mass of 200 g is released from rest at a height of 400 mm above a very large fixed metal surface. If the ball rebounds to a height of 325 mm above the surface, determine the...
An estimated 84 percent of enterprises now use cloud computing solutions involving multiple clouds, whereas less than 10 percent of large organizations employ just a single public cloud. Group of...
XYZ inc. was involved in a tax dispute with the national tax authority. The companys legal counsel estimates that there is a 75% likelihood that the company will lose the dispute and that the amount...
3 . Accounting.. How does depreciation impact financial statements, and what are the different methods of depreciation?

During the launch from a board, a diver's angular speed about her center of mass changes from

Question:

Step by Step Answer:

a We use the kinematic equation at where is the initial angular v...View the full answer

Fundamentals of Physics

Related Video

Students also viewed these Mechanics questions