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 -
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