4. Zebra is twice as heavy as his friend Gazelle. If Zebra is running at half the speed of Gazelle, how much greater is
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4. Zebra is twice as heavy as his friend Gazelle. If Zebra is running at half the speed of Gazelle, how much greater is
4. Zebra is twice as heavy as his friend Gazelle. If Zebra isrunning at half the speed of Gazelle, how much greater is hiskinetic energy compared to Gazelle's? (Hint: Find a ratio of thetwo friends' kinetic energies).