Question

Calculate the speed of a bus which travels at the distance of 480 km in 8 hours covert the speed 2m per second.​

Answer 1

Given :

• Distance covered by bus = 480 km
• Time taken by bus to cover given distance= 8 hours

To find :

Speed of bus

Formula used :

Speed = Distance traveled÷ Time taken

Solution :

$\sf \implies\:Speed \: = \: \dfrac{480 \: km}{8 \: h}$

$\sf \implies\:Speed \: = \: 60\: km /h$

Converting, km/h into m/s

We know that,

• 1km = 1000 m
• 1hr = 60 minutes
• 1 minute = 60second

Therefore,

1 hour = 60 minutes × 60 second/minutes

1 hour = 3600 seconds

$\sf \implies\:\:Speed \: = \: 60 \dfrac{km}{h} \: = \: 60 \times \dfrac{1000m}{3600s}$

$\sf \implies\:\:Speed \: = \: \dfrac{1000m}{60s}$

$\sf \implies\:\:Speed \: = \: 16.67 \: m/s$

ANSWER :

Speed of bus = 60 km/h = 16.67 m/s