Exp 1

course phy 201

This expierment was to observe the change in distance a ball travels horizontally with respect to the change in PE. I set up a ramp with the edge of the table that was 31 cm long and elevated the end of it to change the PE. The ball rolled down the ramp and off the table a vertical distance of 91cm. I recorded several runs of data for heights of 2, 4, and 6 cm from the table top. I graphed these points which indicated near perfect linearity between the two. The next step was I put two points into the equation y = m(x) + b so I could get a model of the expierment. The two equations were:For y we substitute ds' and for x we use H from table top

ds' = m(H) + b

19.1 = m(2) + b

30.3 = m(4) + b

When these eaquations are solved you got the form of ds = 5.6(H) + 7.9

I used my last point to check the equation and it came out almost perfect. (It was .5 cm off) My last point was (6,42)."

What were your specific data?

Was the relationship linear?

Should the relationship be linear?