contestada

A tumbleweed rolls from x = 25.6 m
to x = -14.4 m in 7.90 s. What was
its average velocity?
(Unit = m/s)

Respuesta :

Answer:

-5.06 m/s

Explanation:

The formula to calculate average speed is

V = x2 - x1 / t2 - t1

The start point of the tumbleweed is 25.6m and the final point is -14.4 m

The start time is 0s and the final time is 7.9s

Replacing the values the result is -5.06m/s.

The result of the speed is negative because the direction of the speed is opposite to the direction of the tumbleweed.