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Introductory Physics Homework Help
A 270-kg load is lifted......
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[QUOTE="RUber, post: 5149197, member: 524408"] For part D, the speed is based on basic mechanics and your acceleration. ## v_f = \int_{t_0}^{t_f} a dt ## Assuming t_0 = 0 and v_0 = 0, you will get an answer for v_f based on total time. To find total time, you integrate once more, and solve for how long it takes to go 21m. For part C, I am not too sure, but I would treat gravity like any other force and plug it into your equation for work. One I found on the internet is W[ATTACH=full]202125[/ATTACH] = -mg([ATTACH=full]202126[/ATTACH] h). The negative sign picked up since gravity is working against the distance of travel in this case. [/QUOTE]
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Introductory Physics Homework Help
A 270-kg load is lifted......
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