一道英文物理题 结果就行A child slides down a slide with a 23° incline,and at the bottom her speed is precisely three-fifths what it would have been if the slide had been frictionless.Calculate the coefficient of kinetic friction between t
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![一道英文物理题 结果就行A child slides down a slide with a 23° incline,and at the bottom her speed is precisely three-fifths what it would have been if the slide had been frictionless.Calculate the coefficient of kinetic friction between t](/uploads/image/z/12076817-41-7.jpg?t=%E4%B8%80%E9%81%93%E8%8B%B1%E6%96%87%E7%89%A9%E7%90%86%E9%A2%98+%E7%BB%93%E6%9E%9C%E5%B0%B1%E8%A1%8CA+child+slides+down+a+slide+with+a+23%C2%B0+incline%2Cand+at+the+bottom+her+speed+is+precisely+three-fifths+what+it+would+have+been+if+the+slide+had+been+frictionless.Calculate+the+coefficient+of+kinetic+friction+between+t)
一道英文物理题 结果就行A child slides down a slide with a 23° incline,and at the bottom her speed is precisely three-fifths what it would have been if the slide had been frictionless.Calculate the coefficient of kinetic friction between t
一道英文物理题 结果就行
A child slides down a slide with a 23° incline,and at the bottom her speed is precisely three-fifths what it would have been if the slide had been frictionless.Calculate the coefficient of kinetic friction between the slide and the child.
一道英文物理题 结果就行A child slides down a slide with a 23° incline,and at the bottom her speed is precisely three-fifths what it would have been if the slide had been frictionless.Calculate the coefficient of kinetic friction between t
一个孩子从倾角为23 °的滑滑梯上滑下,有摩擦的情况下在底部的速度是无摩擦情况下的五分之四.计算滑滑梯和孩子之间动摩擦系数.
mgh=mv1^2/2
mg(sin23-ucos23)h/sin23=mv2^2/2
v2=3*v1/5
Then u=0.27
μ=0.271664
μ=0.16979
汗,貌似和其他人的不一样