Physics
Physics, 15.07.2019 11:30, dylan2741

The pony express was a popular method of moving the mail quickly in the mid-1800s. suppose a pony's momentum is calculated to bethe mass of the pony is 450 kg. what is the magnitude of the pony's velocity? a. 16 km/hrb) 320 km/hrc) 630 km/hrd) 160 km/hr

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