Question

Uma pessoa correndo percorre 4km com a velocidade media de 12km/h o tempo do percurdo em minutos e?

Answer 1

TIME

$__________________________$

Given:

• Distance = 4 km
• Speed = 12 km/h

Answer & Solution:

First we need to find the time by dividing distance by time

$\sf \large T = \frac{distance}{speed}$

$\sf \large T = \frac{4 \: km}{12 \: km/h}$

$\sf \large T = 0.33 \: h$

Next is to do dimensional analysis

Factors:

• 1 hour = 60 minutes

Answer:

$\sf \large 0.33 \: \cancel h \: ( \frac{60 \: min}{1 \: \cancel h} ) = \boxed{\sf 19.8 \: minutes}$