The fastest land animal is the cheetah, which runs at a speed of up to 101 km/h. The second fastest is the antelope, which runs at a speed of up to 88 km/h. The cheetah can only maintain its top speed for about 20 s (and then has to rest), whereas the antelope can do it for a considerably longer time. What is the maximum head start the cheetah can allow the antelope?
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