Question

Mr. Hoffman, a science teacher, drove 10 miles to school from home in 20 minutes. He drove the 10 miles home in 30 min. His average velocity was _____ m/s.

Answer 1

zero.

Because he finished right where he started. his total displacement zero. therefore, his average velocity was also zero

Answer 2

His average velocity for the day was 0. He ended where he started so his displacement was 0.