The body does it in 5 seconds. 20 turns. What is the period of circulation of the body?

Given:

N = 20 turns

t = 5 s

Find T -?

Solution:

The rotational speed V is calculated by the formula V = N / t, where N is the number of revolutions during time t.

The frequency of circulation is the reciprocal of the period of circulation T, that is, V = 1 / T.

Then we get that T = t / N. Substituting the known values of N and t we get:

T = 5/20 = 0.25 s.

Answer: 0.25 s.