Question: A particle at t1 = - 2.0s is at x1 = 4.8 cm and at t1 = 4.5 s is at x2 = 8.5 cm.

A particle at t1 = - 2.0s is at x1 = 4.8 cm and at t1 = 4.5 s is at x2 = 8.5 cm. What is its average velocity over this time interval? Can you calculate its average speed from these data? Why or why not?

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