Another Uncertainty with Equations question

[AJDangles]

Homework Statement

A useful kinematic equation is

(vf)^2 = (vi)^2 + 2ad

You drop a ball (with zero initial velocity) from the top of a building to measure the acceleration due to gravity. If you measure the final velocity to be vf ± ∆vf, and the height of the building to be d ± ∆d, what is the relative uncertainty in your determination of the acceleration?

Homework Equations

Uncertainties equations, propagation of error.

The Attempt at a Solution

This time I'm really not sure. Should I first rearrange the equation to solve for acceleration, and then do my propagation of error? Or do I take it as it is right now?

 

[alemsalem]

yes I think you should solve for acceleration, and you just drop vi because its zero and the uncertainty in that is negligible.