A child moves across a horizontal monkey bridge as shown in the video clip, what information do we need in order to answer the question "how much work is she doing against gravity?" (Choose all that apply) VID 20201024 111513842.mp4 00:00 00:13 1.00x * ) Minimize embedded content O The height of the monkey bridge O The length of the monkey bridge O The time it takes to cross O The mass of the child O none of these
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21. If more than one answer is correct, please pick all correct answers. Thanks.
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