帮帮我~~是一道数学题!A super bouncy rubber ball is thrown against a penel. The panel has a mass of 1.25kg and can move freely, forwards and backwards. The balls velocity right before hitting the panel is +6.00m/s, and it bounces off at -
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![帮帮我~~是一道数学题!A super bouncy rubber ball is thrown against a penel. The panel has a mass of 1.25kg and can move freely, forwards and backwards. The balls velocity right before hitting the panel is +6.00m/s, and it bounces off at -](/uploads/image/z/13330624-40-4.jpg?t=%E5%B8%AE%E5%B8%AE%E6%88%91%EF%BD%9E%EF%BD%9E%E6%98%AF%E4%B8%80%E9%81%93%E6%95%B0%E5%AD%A6%E9%A2%98%21A+super+bouncy+rubber+ball+is+thrown+against+a+penel.+The+panel+has+a+mass+of+1.25kg+and+can+move+freely%2C+forwards+and+backwards.+The+balls+velocity+right+before+hitting+the+panel+is+%2B6.00m%2Fs%2C+and+it+bounces+off+at+-)
帮帮我~~是一道数学题!A super bouncy rubber ball is thrown against a penel. The panel has a mass of 1.25kg and can move freely, forwards and backwards. The balls velocity right before hitting the panel is +6.00m/s, and it bounces off at -
帮帮我~~是一道数学题!
A super bouncy rubber ball is thrown against a penel. The panel has a mass of 1.25kg and can move freely, forwards and backwards. The balls velocity right before hitting the panel is +6.00m/s, and it bounces off at -4.90m/s. If the panel moves forward at 1.09m/s, what was the mass of the rubber ball?
原谅我用英文!
帮帮我~~是一道数学题!A super bouncy rubber ball is thrown against a penel. The panel has a mass of 1.25kg and can move freely, forwards and backwards. The balls velocity right before hitting the panel is +6.00m/s, and it bounces off at -
这是一个动量定理的题目:
设the mass of therubber ball is A.
根据动量定理:
1.25x(6+4.9)=1.09A
A=1.25x(6+4.9)/1.09
=12.5 kg
超弹性橡胶球扔在一个面板。面板上有一团1.25kg、可以自由移动,向前和向后。击球前面板+
6.00m/s球的速度,和反射在-4.90m/s。如果板向前移动,在1.09m/s,皮球的质量是什么?
这神马问题,看不懂啊