Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 3.1, Problem 1aT
A block is moving to the left on a frictionless, horizontal table. A hand exerts a constant horizontal force on the block.
1. Suppose that the work done on the arrows at right to show the direction of the displacement of the block and thedirection of the force by the hand.
Explain how you chose the direction of the force on the block by the hand.
Is the block speeding up, slowing down, or moving with constant speed? Explain.
2. Suppose that the block again moves to the left but now the work done by the hand is negative. In the space at right,draw arrows to represent the direction of the displacement of the block and the direction of the force by the hand.
Explain how you chose the direction of the force on the block by the hand.
Is the block speeding up, slowing down, or moving with constant speed? Explain.
Expert Solution & Answer
Learn your wayIncludes step-by-step video
schedule02:00
Students have asked these similar questions
Please answer in Essay Form. Write legibly. Thank you
1. Explain in detail when work done is positive and work done is negative and under what circumstances (if any) is no work done (zero) on a moving object even though a net force acts on it?
2. One sometimes speaks of the "direction of time", evolving from past to future. Does this mean that time is a vector quantity? Explain your reasoning.
3. The acceleration of a certain moving object is constant in magnitude and direction. Must the path of the object is a straight-line? If not, give an example.
C.
Suppose the resultant force acted on an object that was at the origin and resulted in the displacement
vector d =. How much work was done by the resultant force on the object? Use your answer from part b
as appropriate.
d.
Using your results from parts b and c, what is the measure of the angle between the resultant force and
displacement vector?
Two objects of different mass start from rest and are pulled horizontally with
negligible friction by the same magnitude net force and moved through the
same distance. The work done on object 1 is 4000 joules. After the force has
pulled each object, object 1 is seen to move with half the speed of object 2.
Answer the following questions and show your work.
a.
How much work is done on object 2?
What is the kinetic energy of object 1 after being pulled?
Explain.
b.
What is the kinetic energy of object 2 after being pulled?
Explain.
с.
Chapter 3 Solutions
Tutorials in Introductory Physics
Ch. 3.1 - A block is moving to the left on a frictionless,...Ch. 3.1 - In a separate experiment, two hands push...Ch. 3.1 - Shown at right is a side-view diagram of the...Ch. 3.1 - Recall the motion of the block in part B. For each...Ch. 3.1 - Generalize from your answers to pans A—D to...Ch. 3.1 - A glider, glider A, Is pulled by a suing across a...Ch. 3.1 - The diagrams at right show two identical gliders...Ch. 3.1 - A block on a frictionless table is connected to a...Ch. 3.2 - Three students discuss the final momentum and...Ch. 3.2 - Which cart takes longer to travel between the two...
Ch. 3.2 - Use Newton's second law and the definition of...Ch. 3.2 - How does the net work done on cart A(Wnet,A)...Ch. 3.2 - Refer again to the discussion among the three...Ch. 3.2 - Release the ball so that it rolls straight toward...Ch. 3.2 - Release the ball at an angle to the ramp as shown...Ch. 3.2 - How does the direction of the net force on the...Ch. 3.2 - How does the change in kinetic energy of the ball...Ch. 3.2 - For motion 1, draw vector in region II of the...Ch. 3.2 - For motion 2, draw vectors in region II of the...Ch. 3.2 - Consider the change in momentum vectors you...Ch. 3.3 - What differences between gliders M and N could...Ch. 3.3 - For experiment 1,draw and label separate free-body...Ch. 3.3 - In the spaces provided, draw and label vectors to...Ch. 3.3 - A student compares the final speeds of gliders M...Ch. 3.3 - A. Suppose that glider D is free to move and...Ch. 3.3 - A second experiment is performed in which glider D...Ch. 3.3 - Consider the two experiments described above. When...Ch. 3.3 - When the momentum of an object or system of...Ch. 3.3 - Two students the second experiment, in which...Ch. 3.4 - Draw separate free-body diagrams for each block...Ch. 3.4 - Rank the magnitudes of all the horizontal forces...Ch. 3.4 - The velocity vectors for blocks A and B are shown...Ch. 3.4 - Use your knowledge of the velocities and changes...Ch. 3.4 - Draw and label a free-body diagram for system C at...Ch. 3.4 - Write an equation for the momentum of system C in...Ch. 3.4 - Generalize from your results to answer the...Ch. 3.4 - Imagine a single object whose mass is equal to the...Ch. 3.4 - What are the external forces exerted on system C...Ch. 3.4 - The momentum vectors of each block before the...Ch. 3.4 - Draw arrows that represent the direction of the...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Low-pressure centers are also referred to as ______, while high-pressure centers are called ______.
Applications and Investigations in Earth Science (9th Edition)
22. A rock is tossed straight up from ground level with a speed of 20 m/s. When it returns, it falls into a hol...
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
1.1 Write a one-sentence definition for each of the following:
a. chemistry
b. chemical
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
The first diagram shown here represents liquid water. Which of the diagrams that follow best represents the wat...
Introductory Chemistry (6th Edition)
17. Anthropologists are interested in locating areas in Africa where fossils 4-8 million years old might be fou...
Campbell Biology: Concepts & Connections (9th Edition)
DNA sequences in manv human genes are very similar lo the sequences of corresponding genes in chimpanzees. The ...
Campbell Biology (11th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Two objects of different mass start from rest and are pulled horizontally with negligible friction by the same magnitude net force and moved through the same distance. The work done on object 1 is 4000 joules. After the force has pulled each object, object 1 is seen to move with half the speed of object 2. Answer the following questions and show your work. a. How much work is done on object 2? b. What is the kinetic energy of object 1 after being pulled? Explain. C. What is the kinetic energy of object 2 after being pulled? Explain. d. What is the ratio of the mass of object 1 to the mass of object 2? Explain and show work.arrow_forward1. A ball rolls off a table. +X X = 0 a. How long does it take to fall 0.80 meters to the floor? Show all of your work. b. How far does it travel horizontally while it's falling? Its initial horizontal velocity is 2.5 meters / second. Show all of your work. 2.5 m/s 0.80 marrow_forwardA football punter wants to kick the ball so that it is in the air for 4.0 s and lands 50 m from where it was kicked. a. Skecth the path of the football showing horizontal and vertical components of velocity throught it's path on the same diagram. Label all important parameters in the diagram. b. At what angle and with what initial speed should he kick the ball? Assume the ball leaves 1.0 m above the ground. Show all work neatly. Posted Today at 8:48 pmarrow_forward
- You need to be more ENERGYtic to answer this! Direction: Do as instructed. 1. Consider the diagram at the right ina answering the next three questions. Five locations along a roller coaster track are shown. Assume that there are negligible friction and air resistance forces acting upon the coaster car. a. Rank the five locations in order of increasing PE (smallest to largest PE). Use and or = signs. A_C i. E A ii. iv. D C E A V. vi. В 2. Read each of the following statements and identify them as having to do with kinetic energy (KE), potential energy (PE) or both (B).arrow_forwardPlease show your complete solution.please write your solution readable.Graph clearly and redable. Thank you.arrow_forwardWhat’s the answer to question A B and Carrow_forward
- Answer all parts and show the work for each part.arrow_forwardInstructions 1. Write your complete solution for each item. It should be handwritten. 2. Make sure to simplify your answers and box/underline/highlight your final answer. A. Solve the following problems. 17F1 3.) The natural length of a spring is 8 inches. A force of 20 lb stretches the spring to 10 in. Find the work done in stretching the spring from its natural length to 12 in.arrow_forwardPart darrow_forward
- Jane, looking for Tarzan, is running at top speed, 5.60 m/s, and grabs a 10.5 m long vine hanging vertically from a very tail tree in the jungle. a. How high can she swing upward? Calculate make a sketch. b. How much horizontal distance will she cover in her swing, from when she leaves the ground until she leaves reaches the highest point? c. What is the maximum angle the vine will make when Jane stops at the highest part of her swing?arrow_forwardSolve a,b and carrow_forwardUsing a cable with a tension of 1270 N, a tow truck pulls a car 5.00 km along a horizontal roadway. You do not have to show your work. Part A How much work does the cable do on the car if it pulls horizontally? Part B How much work does the cable do on the car if it pulls at 35.0∘ above the horizontal? Part C How much work does the cable do on the tow truck if it pulls horizontally? Part D How much work does the cable do on the tow truck if it pulls at 35.0∘ above the horizontal? Part E How much work does gravity do on the car in part A?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Kinetic Energy and Potential Energy; Author: Professor Dave explains;https://www.youtube.com/watch?v=g7u6pIfUVy4;License: Standard YouTube License, CC-BY