a bullet fired from a rifle.a football quarterback running at top speed a horse walking at about 2miles/hour哪个动量最大?
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abulletfiredfromarifle.afootballquarterbackrunningattopspeedahorsewalkingatabout2miles/hour哪个动量最大?ab
a bullet fired from a rifle.a football quarterback running at top speed a horse walking at about 2miles/hour哪个动量最大?
a bullet fired from a rifle.
a football quarterback running at top speed
a horse walking at about 2miles/hour
哪个动量最大?
a bullet fired from a rifle.a football quarterback running at top speed a horse walking at about 2miles/hour哪个动量最大?
1.从枪膛射出的子弹;
2.一个足球四分位运动员的最高奔跑速度
3.一匹马行进速度为2英里/小时
1.如果子弹重量为0.1kg,出膛速度为1000m/s,则动量为100
2.如果足球运动员重70kg,最高速度为8m/s,则动量为560;
3,如果马重200kg,速度为1m/s,则动量为200.
所以我选2.
a bullet fired from a rifle.a football quarterback running at top speed a horse walking at about 2miles/hour哪个动量最大?
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