- #1

- 9

- 0

## Homework Statement

I slide a ball off of a ramp (the ramp is on a table) and the ball hits the ground and bounces horizontally and vertical.

I know that horizontal velocity = horizontal distance*sqrt(gravity/2*height) or d*sqrt(g/2h)

I want to know the equation for calculation error.

The expression for the error in the horizontal component of ball's velocity is:

Select one:

a. error v = v[(error d)/d + (error g)/g +(error h)/h]

b. error v/2 = v[(error d)/d + (error g)/g +(error h)/h]

c. error v/4 = v[(error d)/d + (error g)/g +(error 2h)/h]

d. error v = v[(error d)/d + (error g)/g +(error 2h)/h]

e. error v/2 = v[(error 2d)/d + (error g)/g +(error h)/h]

## Homework Equations

## The Attempt at a Solution

I think its a. The problem I have is the 2h. I don't know how to deal with it. If v=sqrt(g/h) then I know for sure the answer is a. but since that 2 is there I don't know if the answer is still a.