Question

express 90 km/hr in m/s with explaination.​

Answer 1

Answer:

5m/s

Step-by-step explanation:

To convert one unit to another you use product of 1 this way:

1 = 1000m/1km

1 = 1h/3600s

So you multiply 90km/h times 1 times 1:

$\frac{90km}{h}.\frac{1000m}{1km}.\frac{1h}{3600s}$

Then you simplify the expression:

$\frac{90}{1}.\frac{1000m}{1}.\frac{1}{3600s}$

$\frac{(90)(5m)}{18s}$

$\frac{5m}{s}$