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Two people must have the same speed and velocity if A) they are walking toward each other at 2 m/s. B) they are walking away from each other at 2 m/s. C) they are jogging side by side at 5 m/s. D) they are jogging to two different destinations.

Respuesta :

AL2006

A) they are walking toward each other at 2 m/s.
They have the same speed but opposite velocities. 

B) they are walking away from each other at 2 m/s.
They have the same speed but opposite velocities.

C) they are jogging side by side at 5 m/s.
They have the same speed AND velocity.

D) they are jogging to two different destinations.
We don't know anything about their speed or velocity.

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