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Homework Help
Introductory Physics Homework Help
Figure out how far up the incline of the hill the box slides.
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[QUOTE="jumbogala, post: 4511961, member: 84384"] [h2]Homework Statement [/h2] At the bottom of a hill, a box has a speed of 15 m/s. The hill forms an angle of 30 degrees with the horizontal. How far up the incline of the hill does the box slide?[h2]Homework Equations[/h2] My answer: d = (vf[SUP]2[/SUP] + vi[SUP]2[/SUP]) / 2a [h2]The Attempt at a Solution[/h2] vi = 15 m/s vf = 0 m/s a = (-9.81 m/s[SUP]2[/SUP])*cos(30) = -8.49 m/s[SUP]2[/SUP] d = 13.25 m However, the answer key says d = 23 m. This is the answer if you use a = (9.81 m/s^2)*sin(30) instead. Help? [/QUOTE]
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Homework Help
Introductory Physics Homework Help
Figure out how far up the incline of the hill the box slides.
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