- #1

red888

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## Homework Statement

My data analysis is to project a ball bearing down a curved ramp and off a 0.952m desk. After obtaining the results of how far away the ball lands I am now attempting to comapre them with the theoretical results I get though I am stuck as to how I am supposed to work out that part.

## Homework Equations

P.E. = K.e

P.E. = mgh = K.E. = ½ mv²

mgh = ½ mv²

v=u+at

s=ut+1/2at²

v²=u²+2as

## The Attempt at a Solution

P.E. = mgh = K.E. = ½ mv²

mgh = ½ mv²

gh = ½ v²

2gh = v²

2 x 9.8 x 0.2 = v²

3.92 = v²

√3.92 = 1.98

By placing 0.2 as a height interval I have now worked out the velocity that the ball shall travel at though this is not that helpfull as I have no idea how I am supposed to work out how quickly the ball shall drop due to gravity.

I would really appreciate some help as my textbooks have proven not very good at explaining this and my coursework is due in tommorow.

thanks,