本题目来源于试卷: Physics Unit6: Work and Energy，类别为 通用国际物理
[单选题]
Matthew pulls his little sister 2qvi :a4:fo vvSarah in a sled on an icy suatjs47 vl )*f9vic,eurface (assume no friction), with a fo us4ca veiv* tl9),f7jrce of 60.0 N at an angle of $37^{\circ}$ upward from the horizontal. If he pulls her a distance of 12.0 m, what is the work done by Matthew?
A. $185 \; J$
B. $433 \; J$
C. $575 \; J$
D. $720 \; J$
参考答案: C
本题详细解析:
暂无
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