A person pushing a stroller starts from rest, uniformly accelerating at a rate of 0.500 m/s 2 . What is the velocity of the stroller after it has traveled 4.75 m?

Answer 1

Based on the problem we can gather the information that the initial velocity (v_i) is 0 m/s since it starts at rest, and that the displacement (d) is 4.75 m and acceleration (a) is 0.500 m/s². The question is asking for the final velocity (v_f).

You can use the equation v_f² = v_i² + 2ad to solve this equation. When you plug in your values, you will see: v_f² = (0)² + 2(0.500)(4.75). Once the values are plugged into the calculator, you will find that v_f = 2.18 m/s.

Answer 2

The appropriate kinematic equation to use for this problem is ...

v2 = vo2 + 2aΔx.

You are solving for v.

Other information you know is:

vo = 0 m/s (started from rest)

a = 0.500 m/s^2

Δx = 4.75 m

Plug the values in for the appropriate variables and solve.

If you would like to see how to identify which kinematic equation to use, please watch the attached video!

Be blessed!