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ICE Princess25 [194]

3 years ago

8

Larry drives 20.0 km to the east from his house then 20.0 km west back to his house, takes 5.0 mins to find his wallet and leave

s again. Larry is 40.0 km east of his house 60.0 mins after he left the first time.
A) what is his avg. velocity?

B) what is his avg. speed?

1 answer:

Scorpion4ik [409]3 years ago

4 0

Larry's average speed is
   (total distance) / (total time).

Speed = (80 km) / (60 min) = 80 km/hr .

Larry's average velocity is
       (distance between start- and end- points),
      in the direction from the start-point to the end-point.

   Velocity = (40 km east) / (60 min) = 40 km/hr east .

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