计算题(很简单) 关功 功率质量为0.5千克的物体从高处自由下落,在下落的前2s内重力对物体做的功是多少?这2s内重力对物体做功德平均功率是多少?2s末,重力对物体做功的即时功率是多少?共
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![计算题(很简单) 关功 功率质量为0.5千克的物体从高处自由下落,在下落的前2s内重力对物体做的功是多少?这2s内重力对物体做功德平均功率是多少?2s末,重力对物体做功的即时功率是多少?共](/uploads/image/z/2597505-33-5.jpg?t=%E8%AE%A1%E7%AE%97%E9%A2%98%EF%BC%88%E5%BE%88%E7%AE%80%E5%8D%95%EF%BC%89+%E5%85%B3%E5%8A%9F+%E5%8A%9F%E7%8E%87%E8%B4%A8%E9%87%8F%E4%B8%BA0.5%E5%8D%83%E5%85%8B%E7%9A%84%E7%89%A9%E4%BD%93%E4%BB%8E%E9%AB%98%E5%A4%84%E8%87%AA%E7%94%B1%E4%B8%8B%E8%90%BD%2C%E5%9C%A8%E4%B8%8B%E8%90%BD%E7%9A%84%E5%89%8D2s%E5%86%85%E9%87%8D%E5%8A%9B%E5%AF%B9%E7%89%A9%E4%BD%93%E5%81%9A%E7%9A%84%E5%8A%9F%E6%98%AF%E5%A4%9A%E5%B0%91%3F%E8%BF%992s%E5%86%85%E9%87%8D%E5%8A%9B%E5%AF%B9%E7%89%A9%E4%BD%93%E5%81%9A%E5%8A%9F%E5%BE%B7%E5%B9%B3%E5%9D%87%E5%8A%9F%E7%8E%87%E6%98%AF%E5%A4%9A%E5%B0%91%3F2s%E6%9C%AB%2C%E9%87%8D%E5%8A%9B%E5%AF%B9%E7%89%A9%E4%BD%93%E5%81%9A%E5%8A%9F%E7%9A%84%E5%8D%B3%E6%97%B6%E5%8A%9F%E7%8E%87%E6%98%AF%E5%A4%9A%E5%B0%91%3F%E5%85%B1)
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