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A cheetah is crouched 20 m to the east of a vehicle . At
time t = 0 the cheetah begins to run due east toward an antelope that
is 50 m to the east of the vehicle. During the first 2.0 s of the chase,
the cheetah’s x-coordinate varies with time according to the equation
x = 20 m + (5.0 m>s2)t2. Find its average velocity during
that interval.

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