Find the amount of work done if an object is pushed horizontally 70 m by a force of 25 N directed 60° above the horizontal. (Taken from page 754 #74.)

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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12. An athlete stretches his Achilles tendon by extending one leg behind him with his heel on the floor and pushing
against the wall with a force of 120 N at an angle of 20° from the horizontal. Write the force vector F in
component form. Round the components to the nearest tenth of a Newton. (Taken from page 740 #80. See
text for picture.)
13. Find the amount of work done if an object is pushed horizontally 70 m by a force of 25 N directed 60° above the
horizontal. (Taken from page 754 #74.)
14. The components of n = (4,2) represent the numbers of tacos and drinks, respectively, that a restaurant patron
had for lunch. The components of c = (120,90) represent the number of calories per taco and number of
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Transcribed Image Text:12. An athlete stretches his Achilles tendon by extending one leg behind him with his heel on the floor and pushing against the wall with a force of 120 N at an angle of 20° from the horizontal. Write the force vector F in component form. Round the components to the nearest tenth of a Newton. (Taken from page 740 #80. See text for picture.) 13. Find the amount of work done if an object is pushed horizontally 70 m by a force of 25 N directed 60° above the horizontal. (Taken from page 754 #74.) 14. The components of n = (4,2) represent the numbers of tacos and drinks, respectively, that a restaurant patron had for lunch. The components of c = (120,90) represent the number of calories per taco and number of W tv 20 く
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