Recall that rolling resistance is a force experienced by a vehicle and is given byF=cmg where m is the mass of the vehicle and contents, c is the rolling resistancecoefficient, and g = 9.8 m/s² is acceleration due to gravity.Suppose you are driving a large truck of mass 2500 kg with c = 0.02 to go and pickup some heavy items totaling 300 kg that are located at a warehouse. You areevaluating two different routes to take: route A is 30 km to the warehouse and 35km back to your house; route B is 35 km to the warehouse and 30 km back to yourhouse.Considering the amount of work (and therefore the amount of fuel) required toovercome rolling resistance, which is the better route?Route A is better because the driving distance from your house to thewarehouse is smaller.Both routes are equally good because the total driving distance is the same.Both routes are equally good because the work required to overcome rollingresistance doesn't depend on the distance.Route B is better because the driving distance from the warehouse to yourhouse is smaller.

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Description: Recall that rolling resistance is a force experienced by a vehicle and is given byF=cmg where m is the mass of the vehicle and contents, c is the rolling resistancecoefficient, and g = 9.8 m/s² is acceleration due to gravity.Suppose you are driving

The rolling resistance force (F) is given by F = cmg, where c is the rolling resistance coefficient,…

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Recall that rolling resistance is a force experienced by a vehicle and is given by F=cmg where m is the mass of the vehicle and contents, c is the rolling resistance coefficient, and g = 9.8 m/s² is acceleration due to gravity. Suppose you are driving a large truck of mass 2500 kg with c = 0.02 to go and pick up some heavy items totaling 300 kg that are located at a warehouse. You are evaluating two different routes to take: route A is 30 km to the warehouse and 35

Recall that rolling resistance is a force experienced by a vehicle and is given by F=cmg where m is the mass of the vehicle and contents, c is the rolling resistance coefficient, and g = 9.8 m/s² is acceleration due to gravity. Suppose you are driving a large truck of mass 2500 kg with c = 0.02 to go and pick up some heavy items totaling 300 kg that are located at a warehouse. You are evaluating two different routes to take: route A is 30 km to the warehouse and 35

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter2: Vectors

Section: Chapter Questions

Problem 26P: In a tug-of-war game on one campus, 15 students pull on a rope at both ends in an effort to displace...

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Students are performing an experiment with the setup shown above, where a block of mass M sits on a horizontal table. The coefficient of kinetic friction between the block and the table is μk. The block is connected to a hanging object over a pulley. The pulley has negligible mass and friction. The string connecting the two is very light and does not stretch. The students add mass to the hanging object so that its mass is mm, where m<M, and the block-hanging object system is released from rest. The hanging object falls for a distance hh, at which point it collides with the ground and comes to rest. The block on the table keeps sliding and travels a total distance d before coming to rest. It does not reach the pulley, and d>h. Students derive the following equation for the relationship between the distance dd and the height h. (see image) (b) Whether or not this equation is correct, does it match the reasoning below? Justify your answer. if the experiment were repeated where the…
Students are performing an experiment with the setup shown above, where a block of mass M sits on a horizontal table. The coefficient of kinetic friction between the block and the table is μk. The block is connected to a hanging object over a pulley. The pulley has negligible mass and friction. The string connecting the two is very light and does not stretch. The students add mass to the hanging object so that its mass is m, where m < M, and the block-hanging object system is released from rest. The hanging object falls for a distance h, at which point it collides with the ground and comes to rest. The block on the table keeps sliding and travels a total distance d before coming to rest. It does not reach the pulley, and d > h. At the beginning of the final trial, the string connecting the hanging object and the block is cut. The hanging object collides elastically with the floor and bounces vertically. Describe how high it bounces in terms of h. Justify your answer.
Students are performing an experiment with the setup shown above, where a block of mass M sits on a horizontal table. The coefficient of kinetic friction between the block and the table is μk. The block is connected to a hanging object over a pulley. The pulley has negligible mass and friction. The string connecting the two is very light and does not stretch. The students add mass to the hanging object so that its mass is m, where m < M, and the block-hanging object system is released from rest. The hanging object falls for a distance h, at which point it collides with the ground and comes to rest. The block on the table keeps sliding and travels a total distance d before coming to rest. It does not reach the pulley, and d > h. Students notice that the acceleration due to gravity does not appear in the (d - h) equation in the image and assume that must be a mistake. Do you agree with them? Justify your answer.
Students are performing an experiment with the setup shown above, where a block of mass M sits on a horizontal table. The coefficient of kinetic friction between the block and the table is μk. The block is connected to a hanging object over a pulley. The pulley has negligible mass and friction. The string connecting the two is very light and does not stretch. The students add mass to the hanging object so that its mass is m, where m < M, and the block-hanging object system is released from rest. The hanging object falls for a distance h, at which point it collides with the ground and comes to rest. The block on the table keeps sliding and travels a total distance d before coming to rest. It does not reach the pulley, and d > h. During this experiment does the angular momentum of the block-hanging object system about an axis through the center of the pulley remain constant? Justify your answer.
Students are performing an experiment with the setup shown above, where a block of mass M sits on a horizontal table. The coefficient of kinetic friction between the block and the table is μk. The block is connected to a hanging object over a pulley. The pulley has negligible mass and friction. The string connecting the two is very light and does not stretch. The students add mass to the hanging object so that its mass is m, where m < M, and the block-hanging object system is released from rest. The hanging object falls for a distance h, at which point it collides with the ground and comes to rest. The block on the table keeps sliding and travels a total distance d before coming to rest. It does not reach the pulley, and d > h. A student creates a data table (see image) for the net force exerted on the block during the speeding up and slowing down portions of the experiment. (d) Does the block of mass M spend more time speeding up or slowing down? Justify your answer.