Question: A 120-kg mail bag hangs by a vertical rope 3.5 m long. A postal worker then displaces the bag to a position 2.0 m sideways

A 120-kg mail bag hangs by a vertical rope 3.5 m long. A postal worker then displaces the bag to a position 2.0 m sideways from its original position, always keeping the rope taut.
(a) What horizontal force is necessary to hold the bag in the new position?
(b) As the bag is moved to this position, how much work is done
(i) By the rope and (ii) by the worker?

Step by Step Solution

★★★★★

3.42 Rating (161 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

IDENTIFY Use the freebody diagram for the bag and Newtons first law to find the force the worker app... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

P-M-P-E (76).docx

120 KBs Word File

Students Have Also Explored These Related Mechanics Questions!

Part 2. Martin Inc. purchased a new truck on April 30, 2020, by trading in its old model and paying the balance in cash. The following data relate to the transaction: List price of new truck $6,800...

A resultant force F is necessary to hold the balloon in place. Resolve this force into components along the tether lines AB and AC, and compute the magnitude of each component. Given: F = 350 lb...

How much work is done by a force F = (2x N)i + (3 N)i, with x in meters, that moves a particle from a position ri = (2 m)i + (3 m)j to a position rf = (4 m)i (3 m)j?

How much work is done by an applied force that moves two charges of 6.5C that are initially very far apart to a distance of 4.5 cm apart?

CP A 9 0 . 0 kg mail bag hangs by a vertical rope 3 . 5 m long. A postal worker then displaces the bag to a position 2 . 0 m sideways from its original position, always keeping the rope taut. ( a )...

A 8 5 . 0 kg mail bag hangs by a vertical rope 3 . 5 m long. A postal worker then displaces the bag to a position 2 . 1 m sideways from its original position, always keeping the rope taut.

A 95.0 kg mail bag hangs by a vertical rope 3.3 m long. A postal worker then displaces the bag to a position 2.5 m sideways from its original position, always keeping the rope taut. a) What...

A 9 4 . 0 - kgkg mail bag hangs by a vertical rope 3 . 1 mm long. A postal worker then displaces the bag to a position 2 . 1 mm sideways from its original position, always keeping the rope taut. As...

A 110.0 kg mail bag hangs by a vertical rope 3.50 m long. A bored (but very strong) postal worker then displaces the bag to a position which is horizontally 2.00 m away from the original vertical...

A 130.0 kg mail bag hangs by a vertical rope 4.00 m long. A bored (but very strong) postal worker then displaces the bag to a position which is horizontally 2.00 m away from the original vertical...

Describing Data Once we have collected data from surveys or experiments, we need to summarize and present the data in a way that will be meaningful to the reader. We will begin with graphical...

Stanford-Binet IQ Test scores are normally distributed with a mean score of 1(H) and a standard deviation of 16. a. Sketch the distribution of Stanford-Binet IQ test scores. b. Write the equation...

We (generally) reject the null hypothesis when the test statistic falls into the rejection region, but we do not accept the null hypothesis when the test statistic does not fall into the rejection...

find the solution of the differential equation that satifisies the given intial conditon. dy / dx = 9 ex ^ y , y ( 0 ) = 0

On January 5, 2020 Ogio Company had 300,000 shares of $30 par value and a market price of $35 per share. On the same date company decided to pay a stock dividend of 25%. Stock Dividends are delivered...

In a desertification combat project, TEMA (Trkiye Erozyonla Mcadele, Aalandrma ve Doal Varlklar Koruma Vakf) has detected three territories under risk in Karapnar (P), Ereli (E) and Karaman (K) that...

Below is an item from a Bill of Quantities. Assuming that a trench is lm deep and 300m long has to be excavated in open ground, a new water main (material cost = US$ 70 per m) laid and the trench...

u(x, y) = x2 y? 2xy 2x + 3y For the following function a) Determine whether the function is harmonic. b) If it is harmonic, find its harmonic conjugate function. c) Form an analytic function f(z)...

What special distribution challenges exist in Japan? What is the best way for a non-Japanese company to deal with these challenges?

6 Read these two possible endings for the story. A: Granddaughter's child is also fearful. Granddaughter uses the things she has learnt from grandmother to help her own child overcome her fears. B:...

\fSamples of starting annual salaries for individuals entering the public accounting and nancial planning professions follow. Annual salaries are shown in thousands of dollars. Public Accountant...

'I. Chains Inc. is in the business of making and selling chains. Let c(t)be the number of miles of chain produced after t hours of production. Let p(c) be the profit as a function of the number of...

1. Karen is filling out an application for medical school. The application requires that Karen supplyher MCAT score. Karen scored 512 on the MCAT. The mean MCATscore is 500.9 with a standard...