Arunner begins running at the beginning of 7th period and stops running at the end of the period. she runs at a pace of 10 km/hr and travels 9.2 km. how long did she run

She run for, t = 0.92 s

Explanation:

Given data,

The velocity of the runner, v = 10 km/h

The distance covered by the runner, d = 9.2 km

The relationship between the velocity, displacement and time is given by the formula,

                           t = d / v

Substituting the given values in the above equation,

                           t = 9.2 / 10

                             = 0.92 s

Hence, she ran for, t = 0.92 s

answer: b.

explanation: