please help with questions 7,8 and 9 7 A horizontal force with a magnitude of 40.newtons is used to push a block along a leveltable at a constant speed of 2.0 meters per second.How much work is done on the block in 6.09 The amount of work done against friction to slideseconds?(1) 80. J(2) 120 J(3) 240 J(4) 480 J8 A force with a magnitude of 100. newtons is usedto push a trunk to the top of an incline 3.0 meterslong. Then a force with a magnitude of 50.newtons is used to push the trunk for 10. metersalong a horizontal platform. What is the totalwork done on the trunk?(1) 8.0 × 10² J(2) 5.0 x 10 J(3) 3.0 x 102 J(4) 9.0 × 10² Ja box in a straight line across a uniform,horizontal floor depends most on the(1) time taken to move the box(2) distance the box is moved(3) speed of the box(4) direction of the box's motion

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Description: please help with questions 7,8 and 9 7 A horizontal force with a magnitude of 40.newtons is used to push a block along a leveltable at a constant speed of 2.0 meters per second.How much work is done on the block in 6.09 The amount of work done agains

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7 A horizontal force with a magnitude of 40. newtons is used to push a block along a level table at a constant speed of 2.0 meters per second. How much work is done on the block in 6.0 seconds? (1) 80. J (2) 120J (3) 240 J (4) 480 J

7 A horizontal force with a magnitude of 40. newtons is used to push a block along a level table at a constant speed of 2.0 meters per second. How much work is done on the block in 6.0 seconds? (1) 80. J (2) 120J (3) 240 J (4) 480 J

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter7: Work, Energy, And Energy Resources

Section: Chapter Questions

Problem 7PE: A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N...

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