calculating final speed with constant acceleration

Question

what equation can be used to solve this problem?

a bicyclist at rest begins pedaling and gaining speed steadily for 5.7 seconds during which she covers 33m. what is her final speed?

Answer 1

s=33m

t=5.7s

v₀=0m/s

2 equations can be used to get final speed

s=v₀t+0.5at² Equation 1.

v=v₀+at Equation 2.

Find a from Equation 1.

a=2s/t²=2.03m/s²

Substitute a into Equation 2 to find v

v=a*t=2.03m/s²*5.7s=11.58m/s

Answer v=11.58m/s