Aperson riding north on a bicycle speeds up from 0 m/s to 9 m/s in 3 seconds. the acceleration of the bicycle is

By definition, we have to:

Where,

vf: final speed

a: acceleration

t: time

vo: final speed

Clearing the value of the acceleration we have:

Substituting values we have:

The acceleration of the bicycle is:

6 cos 34, 6 sin 34 trig

t = 1/400 h   ⇔ 0.0025 h ⇔ 9s ⇔ 0.15 m

any of the answers are correct.