Question

Question #a4254

Answer 1

a)`12.5m//s`
b)The speed of the bus has decreased, because the distance is the same and it took longer time to travel between them.

Explanation:

a) `v_(avg)=(Deltax)/(Deltat)`

The distance is `25m` and the time is `2s`, thus, the average velocity is

`v_(avg)=25/2=12.5m//s`

b) The same distance is covered by a longer time, therefore the speed of the bus has decreased.