Cheetah vs antelope

When the cheetah began chasing the antelope, the distance between them was 120 meters. Although the antelope was running at 72km/h, the cheetah caught up with it in 12 seconds. What speed was the cheetah running?

Correct answer:

v =  108 km/h

Step-by-step explanation:

s1=s2  t=12 s h=12:3600  h=0.00333 h s0=120 m km=120:1000  km=0.12 km  72 t+s0=v t 72 0.0033333333333333+0.12=v 0.0033333333333333  0.003333v=0.36  v=0.003333330.36=108  v=108=108 km/h

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