Question

a teacher start from his residence at 7:30 am and reaches his school at 7:50 am on his scooter the school is 8km away from his residence. calculate his average speed

Answer 1

Time taken= 20 mins = 1200 secs

u = 0; v = 8000m

Average speed = v-u/t = 8000-0/1200

= 6.67m/s

Answer 2

Explanation:

Time taken by teacher to reach atschool=20 mins = 1200 secs

u = 0

v = 8000

Average speed =

$\frac{v - u}{t}$

$\frac{8000 - 0}{1200}$

$6.67$