Kanna Kamui runs 100 meters in a relay race. If her average velocity is 10.8 meters per second then how long did it take her to reach the finish line.

Answer:we know,
displacement = 100 meters
time = ?
average velocity = 10.8 m/s
now,
average velocity = displacement ÷ time
or, 10.8 = 100 ÷ time
or, 10.8 × time = 100
or, time = 100 ÷ 10.8
Time = 9.25 seconds