Question

Margy is trying to improve her cardio endurance by performing an exercise in which she alternates walking and running 100.0 m each. If Margy is walking at 1.4 m/s and accelerates at 0.20 m/s2 during one of the running portions, what is her final velocity at the end of the 100.0 m? Round your answer to the nearest tenth.

Answer 1

vf^2 = v0^2 + 2ax

Where vf is the final velocity
v0 is the initial velocity
a is the acceleration
x is the distance travelled

Plug in the appropriate quantities and solve for vf