The pony express was a popular method of moving the mail quickly in the mid-1800s. Suppose a pony's momentum is calculated to be The mass of the pony is 450 kg. What is the magnitude of the pony's velocity?

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asked Sep 17, 2017 49.8k views

1 vote

The pony express was a popular method of moving the mail quickly in the mid-1800s. Suppose a pony's momentum is calculated to be

The mass of the pony is 450 kg. What is the magnitude of the pony's velocity?

A) 16 km/hr
B) 320 km/hr
C) 630 km/hr
D) 160 km/hr