Inclined Plane

 

Raw Data 

For every distance, I took the time 3 times.

 

Processed Data

I calculate the maximum velocity V_max i.e. Displacement_max/T_min

I calculated the uncertainty in Velocity² by V_max² – V².

Final table:

 

Graph

 

Conclusion

I have a linear graph and the line passes through all the error bars. Therefore I can say that the distance travelled is directly proportional to the velocity squared. Since v²=u²+2as, and u is 0, the gradient of the line will be equal to 2a.The gradient according to the graph is a 0.2410. Hence, the acceleration is 0.1205 m/s²  which is constant.

 

Evaluation

I was expecting the y intercept to be 0 since u² was 0 but it happened to be 0.02550.
The error bars are really big so I think I overestimated the errors.
Other things I guess are satisfactory.
Nevertheless, I think the experiment could have been better by:

 

Improvements

• Keeping the slope stable. I guess we were moving the slope in the course of the experiment
• I took the time only 3 times for every distance. Maybe it would have been better if I had taken the time for every distance a couple of more times.
• Not pushing the trolley. I think we pushed the truly when we released it which probably affected the velocity. We should just have let the trolley roll.