Question

you can speed from 0 to 25 m/s in 25 seconds and your friend can speed up from 0 to 6 m/s in 6 seconds. who is faster

Answer 1

Neither; see below

Explanation:

Your acceleration:
`a=(\Delta v)/(\Delta t)=(25-0)/(25)=1m/s^2`

Your friend's acceleration:
`a=(\Delta v)/(\Delta t)=(6-0)/(6)=1m/s^2`

Therefore, since both you and your friend accelerate at the same rate, neither is faster.