1) Your car broke down, so you tie a rope to your car and pull the car with constant force to the parking lot. a) How much work do you do on the car if the rope is horizontal to the ground 0 = 0° (yellow line in image below) and you pull the car 5 meters? b) How much work do you do on the car if rope is at the angle 0 = 30°for the distance of 5 meters? c) What do you conclude from your (a) and (b)?

1) Your car broke down, so you tie a rope to your car and pull the car with constant force to the parking lot. a) How much work do you do on the car if the rope is horizontal to the ground 0 = 0° (yellow line in image below) and you pull the car 5 meters? b) How much work do you do on the car if rope is at the angle 0 = 30°for the distance of 5 meters? c) What do you conclude from your (a) and (b)?

Name: 1) Your car broke down, so you tie a rope to your car and pull the ca
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Description: 1) Your car broke down, so you tie a rope to your car and pull the car with constant force to theparking lot.a) How much work do you do on the car if the rope is horizontal to the ground 0 = 0° (yellowline in image below) and you pull the car 5 mete

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter10: Work, Energy And Machines

Section: Chapter Questions

Problem 58A

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Similar questions

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.
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A 0.20-kg ball is thrown upward. How much work is done on the ball by gravity as the ball rises between heights of 2.0 m and 3.0 m?
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?
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 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using only his teeth. (a) How much work did Arfeuille do on the object? (b) What magnitude force did he exert on the object during the lift, assuming the force was constant?
Does the work you do on a book when you lift it onto a shelf depend on the path taken? On the time taken? On the height of the shelf? On the mass of the book?
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
In 1990, Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using only his teeth. (a) How much work was done on the object by Arfeuille in this lift, assuming the object was lifted at constant speed? (b) What total force was exerted on Arfeuilles teeth during the lift?
A crate on rollers is being pushed without frictional loss of energy across the floor of a freight car (see the following figure). The car is moving to the right with a constant speed v0 . If the crate starts at rest relative to the freight car, then from the work-energy theorem, Fd=mv2/2, where d, the distance the crate moves, and v , the speed of the crate, are both measured relative to the freight car. (a) To an observer at rest beside the tracks, what distance d is the crate pushed when it moves the distance d in the car? (b) What are the crate’s initial and final speeds v0 and v as measured by the observer beside the tracks? (c) Show that Fd=m(v)2/2m(v0)2/2 and, consequently, that work is equal to the change in kinetic energy in both reference systems.
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