Question

A car covers a distance of 5 km in 20 mins .find the velocity of the car in

a) km/min

b )m/s .

c) m/min .

d) km/hr.

Answer 1

Step 1, Given data

Distance = 5 km = 5000 m

Time = 20 min = 1200 sec = $\frac{1}{3}h$

Step 2, Speed in km/min

We know,

$Speed=\frac{Distance}{Time}$

Putting all the values

$Speed=\frac{5}{20}=\frac{1}{4}$ km/min

Step 3, Speed in m/s

We know,

$Speed=\frac{Distance}{Time}$

Putting all the values

$Speed=\frac{5000}{1200}=4.16$ m/s

Step 4, Speed in m/min

We know,

$Speed=\frac{Distance}{Time}$

Putting all the values

$Speed=\frac{5000}{20}=250$ m/min

Step 5, Speed in km/h

We know,

$Speed=\frac{Distance}{Time}$

Putting all the values

$Speed=\frac{5}{\frac{1}{3}}=15$ km/h