如图所示,光滑水平面上A、B两小球沿同一方向运动,A球的动量为8kgm/s,B球的质量为2kg,速度为6m/s,已知两球相碰后,A球的动量减为原来的一半,方向与原方向一致.求:(1)碰撞后B球的速度变为多
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![如图所示,光滑水平面上A、B两小球沿同一方向运动,A球的动量为8kgm/s,B球的质量为2kg,速度为6m/s,已知两球相碰后,A球的动量减为原来的一半,方向与原方向一致.求:(1)碰撞后B球的速度变为多](/uploads/image/z/11249470-46-0.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E5%85%89%E6%BB%91%E6%B0%B4%E5%B9%B3%E9%9D%A2%E4%B8%8AA%E3%80%81B%E4%B8%A4%E5%B0%8F%E7%90%83%E6%B2%BF%E5%90%8C%E4%B8%80%E6%96%B9%E5%90%91%E8%BF%90%E5%8A%A8%2CA%E7%90%83%E7%9A%84%E5%8A%A8%E9%87%8F%E4%B8%BA8kgm%2Fs%2CB%E7%90%83%E7%9A%84%E8%B4%A8%E9%87%8F%E4%B8%BA2kg%2C%E9%80%9F%E5%BA%A6%E4%B8%BA6m%2Fs%2C%E5%B7%B2%E7%9F%A5%E4%B8%A4%E7%90%83%E7%9B%B8%E7%A2%B0%E5%90%8E%2CA%E7%90%83%E7%9A%84%E5%8A%A8%E9%87%8F%E5%87%8F%E4%B8%BA%E5%8E%9F%E6%9D%A5%E7%9A%84%E4%B8%80%E5%8D%8A%2C%E6%96%B9%E5%90%91%E4%B8%8E%E5%8E%9F%E6%96%B9%E5%90%91%E4%B8%80%E8%87%B4.%E6%B1%82%EF%BC%9A%EF%BC%881%EF%BC%89%E7%A2%B0%E6%92%9E%E5%90%8EB%E7%90%83%E7%9A%84%E9%80%9F%E5%BA%A6%E5%8F%98%E4%B8%BA%E5%A4%9A)
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