Be sure to review Examples 6.1 and 6.2 (Section 6.1) beforeattempting these problems.I Review I ConstantsVP 6.2.1• Part AAs a football player moves in a straight line [displacement (5.00 m)i - (4.50 m)jl an opponent exerts a constant force (126 Nji + (168 N)j on him. Howmuch work does the opponent do on the football player?Express your answer with the appropriate units.?w.0.126JSubmitPrevious Answers Request AnswerX Incorrect; Try Again; 4 attempts remaining• Part BHow much work does the football player do on the opponent?Express your answer with the appropriate unitsValueUnitsSubmitRequest AnawerVP 6.2.2MacBook AirescF210%23&4.7.8%3DdeleteQWERTYPtabDFHJKLcaps lockreturnVBNshiftshiftcontroloptioncommandcommandoption

Name: Be sure to review Examples 6.1 and 6.2 (Section 6.1) beforeattempting
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: Be sure to review Examples 6.1 and 6.2 (Section 6.1) beforeattempting these problems.I Review I ConstantsVP 6.2.1• Part AAs a football player moves in a straight line [displacement (5.00 m)i - (4.50 m)jl an opponent exerts a constant force (126 Nji

Science

Physics

ReviewI Constants Be sure to review Examples 6.1 and 6.2 (Section 6.1) before attempting these problems VP 6.2.1 Part A As a football player moves in a straight line (displacement (5.00 m)i - (4.50 m)j, an opponent exerts a constant force (126 N)i + (168 N)j on him. How much work does the opponent do on the football player? Express your answer with the appropriate units. w- 0.126 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B How much work does the football player do on the opponent? Express your answer with the appropriate units. HA Value Units

ReviewI Constants Be sure to review Examples 6.1 and 6.2 (Section 6.1) before attempting these problems VP 6.2.1 Part A As a football player moves in a straight line (displacement (5.00 m)i - (4.50 m)j, an opponent exerts a constant force (126 N)i + (168 N)j on him. How much work does the opponent do on the football player? Express your answer with the appropriate units. w- 0.126 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B How much work does the football player do on the opponent? Express your answer with the appropriate units. HA Value Units

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter10: Work, Energy And Machines

Section10.1: Work And Energy

Problem 7PP

See similar textbooks

Similar questions

As a young man, Tarzan climbed up a vine to reach his tree house. As he got older, he decided to build and use a staircase instead. Since the work of the gravitational force mg is path Independent, what did the King of the Apes gain in using stairs?
The force acting on a particle varies as shown in Figure P6.14. Find the work done by the force on the particle as it moves (a) from x = 0 to x = 8.00 m, (b) from x = 8.00 m to x= 10.0 m, and (c) from x = 0 to x = 10.0 m.
Physics Review A team of huskies performs 7 440 J of work on a loaded sled of mass 124 kg, drawing it from rest up a 4.60-m high snow-covered rise while the sled loses 1 520 J due to friction, (a) What is the net work done on the sled by the huskies and friction? (b) What is the change in the sleds potential energy? (c) What is the speed of the sled at the top of the rise? (See Section 5.5.)
In a Coyote/Road Runner cartoon clip (https://openstaxcollege.org/l/21coyroadcarcl), a spring expands quickly and sends the coyote into a rock. If the spring extended 5 m and sent the coyote of mass 20 kg to a speed of 15 m/s, (a) what is the spring constant of this spring? (b) If the coyote were sent vertically into the air with the energy given to him by the spring, how high could he go if there were no non-conservative forces?
A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N frictional force. He pushes in a direction 25.0° below the horizontal. (a) What is the work done on the cart by friction? (b) What is the work done on the cart by the gravitational force? (c) What is the work done on the cart by the shopper? (d) Find the force the shopper exerts, using energy considerations. (e) What is the total work done on the cart?
Give an example of a situation in which there is a force and a displacement, but the force does no work. Explain why it does no work.
(a) A force F=(4xi+3yj), where F is in newtons and x and y are in meters, acts on an object as the object moves in the x direction from the origin to x = 5.00 m. Find the work W=Fdr done by the force on the object. (b) What If? Find the work W=Fdr done by the force on the object if it moves from the origin to (5.00 m, 5.00 m) along a straightline path making an angle of 45.0 with the positive x axis. Is the work done by this force dependent on the path taken between the initial and final points?
Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 90.0 kg, down a 60.0° slope at constant speed, as shown in Figure 7.37. The coefficient of friction between the sled and the snow is 0.100. (a) How much work is done by friction as the sled moves 30.0 m along the hill? (b) How much work is done by the rope on the sled in this distance? (c) What is the work done by the gravitational force on the sled? (d) What is the total work done?
a shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 below the horizontal. The force is just sufficient to overcome various frictional forces, so the cart moves at constant speed, (a) Find the work done by the shopper as she moves down a 50.0-m length aisle, (b) What is the net work done on the cart? Why? (c) The shopper goes down the next aisle, pushing horizontally and maintaining the same speed as before. If the work done by frictional forces doesnt change, would the shoppers applied force be larger, smaller, or the same? What about the work done on the cart by the shopper?
In Figure 5.5 (a)-(d), a block moves to the right in the positive x-direction through the displacement x while under the influence of a force with the same magnitude F. Which of the following is the correct order of the amount of work done by the force F, from most positive to most negative? (a) d, c, a, b (b) c, a, b, d (c) c, a, d, b
A worker pushes a wheelbarrow with a horizontal force of 50 N on level ground over a distance of 5.0 m. 11 a friction force of 43 N acts on the wheelbarrow in a direction opposite that of the worker, what work is done on the wheelbarrow by the worker? (a) 250 J (b) 215 (c) 35 J (d) 10 J (e) None of those answers is correct.
The force acting on a particle is Fx = (8x 16), where F is in newtons anti x is in meters. (a) Make a plot of this force versus x from x = 0 to x = 3.00 m. (b) From your graph, find the net work done by this force on the particle as it moves from x = 0 to x = 3.00 m.