A worker drags a crate across a factory floor by pulling on a rope tied to the
Question:
A worker drags a crate across a factory floor by pulling on a rope tied to the crate. The worker exerts a force of magnitude F = 450N on the rope, which is inclined at an upward angle θ = 38o to the horizontal, and the floor exerts a horizontal force of magnitude f = 125N that opposes the motion. Calculate the magnitude of the acceleration of the crate if
(a) Its mass is 310 kg and
(b) Its weight is 310 N
Step by Step Answer:
Although the full specification of Fnet ma in this situation invo...View the full answer
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Related Video
In Physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. In this video, the concept of force and torque is demonstrated with the practical application of changing the flat tire of the car.
Students also viewed these Mechanics questions
-
The hydraulic cylinder shown exerts a force of 3 kN directed to the right on Point B and to the left on Point E. Determine the magnitude of the couple M required to rotate the drum clockwise at a...
-
The circular punch B exerts a force of 2 kN on the top of the plate A. Determine the average shear stress in the plate due to this loading. 2 kN 4 mm | |2 mm
-
If the plate shown is inclined at an angle as shown, what are the forces F x and F y necessary to maintain its position? The flow is friction less. 4 3 v = 100 fps - Fx m = 2 slugs/s Fy
-
In schema normalisation, is Boyce-Codd Normal Form (BCNF) always to be preferred over 3rd Normal Form (4NF)? Explain your answer. [5 marks] 8 (TURN OVER) CST.2004.7.4 8 Economics, Law and Ethics (a)...
-
What are the five stages of a business life cycle? Do all companies go through all five stages?
-
Hill Fine Instruments manufactures trumpets, trombones, tubas, and other brass instruments. The following standards were developed for a line of trumpets: During April, Hill scheduled 550 trumpets...
-
Data for Jennifer Anistons business as at 31 December 20x9 are as follows: Required 1 Prepare a profit and loss account for the year ending 31 December 20x9. 2 Prepare a balance sheet as at 31...
-
Assume a federal agency has the following events: 1. Receives a warrant from the Treasury notifying the agency of appropriations of $2,400,000. 2. OMB apportions one-fourth of the appropriation for...
-
If 8 g of a radioactive substance are present initially and 5 yr later only 4.0 g remain, how much of the substance, to the nearest tenth of a gram, will be present after 11 yr? After 11 yr, there...
-
A circular hoop is suspended in a horizontal plane by three strings, each of length l, which are attached symmetrically to the hoop and are connected to fixed points lying in a plane above the hoop....
-
A block of mass M is pulled along a horizontal frictionless surface by u rope of mass m, as shown in Figure. A horizontal force F acts on one end of the rope. (a) Show that the rope must sag, even if...
-
Three forces act on a particle that moves with unchanging velocity v = (2 m/s)i (7 m/s)i. Two of the forces are F1 = (2 N)i + (3 N)j + ( 2N)k and F2 = ( 5N)i + (8 N)j + ( 2 N)k. What is the third...
-
Consider an asset that costs $670,000 and is depreciated straight-line to zero over its eight-year tax life. The asset is to be used in a five-year project; at the end of the project, the asset can...
-
10. Molly and Jack are trying to decide how to allocate their investment portfolio. The risk-free rate is 4%. An advisor has alerted them to 3 funds as follows. Fund Canadian Bond E(r) 6% 8% U.S....
-
Can you explain the Instagram - social media platform medium could be used and the motivations behind the mediu and how this medium differs from the others (direct mail and email), and how the social...
-
If a person gets legally drunk - meaning their BAC is 0.08% or higher; what will determine how long it takes for them to become sober? What is the role of physical and environmental factors...
-
1. Explain what is meant by the phrase "Communication is contextual." Can you think of examples of how context has influenced your behavior? 2. How does intercultural communication differ from...
-
Write SHORT CLASSIC ESSAY about the two articles below: Rice, W. (2020). Letter to a young Indigenous journalist. The Walrus. ...
-
Identify five possible sampling objectives the auditor might have in selecting sample items. For each objective, give an example for which the objective is likely to be appropriate.
-
Rewrite Programming Exercise 7.5 using streams. Display the numbers in increasing order. Data from Programming Exercise 7.5 Write a program that reads in 10 numbers and displays the number of...
-
Suppose a 350-g kookaburra (a large kingfisher bird) picks up a 75-g snake and raises it 2.5 m from the ground to a branch. (a) How much work did the bird do on the snake? (b) How much work did it do...
-
An electric field E with an average magnitude of about 150 N/C points downward in the atmosphere near Earth's surface. We wish to "float" a sulfur sphere weighing 4.4 N in this field by charging the...
-
For the data of Problem 70, assume that the charge q on the drop is given by q = ne, where n is an integer and e is the elementary charge. (a) Find n for each given value of q. (b) Do a linear...
-
A point charge of 1.8 C is at the center of a Gaussian cube 55 cm on edge. What is the net electric flux through the surface?
-
Which of the following is a SOURCE of cash?Group of answer choicesAn increase in Prepaid TaxesThe purchase of a new truckA decrease in Accounts PayableThe sale of marketable securities
-
Dec. 1, 2024: Mortgaged the warehouse for $550,000 cash with Southside Bank. The mortgage requires monthly payments of $7,000. The interest rate onthe note is 3% and accrues monthly. The first...
-
According to the Code, the subscriber must make the following disclosures: Group of answer choices Information about fees and charges. Information about fees and charges and daily or periodic...
Study smarter with the SolutionInn App