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## Homework Statement

We did an experiment where A marble travels down a ramp,

rolls along for 5 cm, then falls off a desk. The marble starts off

while gravitational potencial energy, and ends with kinetic energy.

We were given a formula for the distance from the desk the marble

lands, 'x', calculated by multiplying the height of the ramp by the

height the desk and square rooting the product. So here's my question:

Why is the expected 'X' so different from the 'X' obtained in the experiment?

## Homework Equations

Egpe = mgh

Eke = 1/2mv**2

## The Attempt at a Solution

Is the large percent error caused by the marble

having some kinetic energy on the ramp?

HELP!

Jen DM