Help with analysing data from 'Tracker' app (Projectile Motion) (1 Viewer)

[luo_ge]

Hi can I have some help answering these questions (using file attached) because I don't really know how to do them.

1.Demonstrate the relationship between the gradient of the graph, the “equation on chart” and the value for g.
2.Extract from your SS: Ux, Vx, Rx initial, Ry initial.
3.If the ruler is 1.1 m above the ground, calculate how high above the ground your first data point is.
4.Calculate the horizontal range of the ball from the point of release to where it hits the ground.
5.Consider how the R2 value relates to reliability.
6.What factors affect the validity of this experiment and analysis?
7.Assess the accuracy of your value for g.

 

[pikachu975]

Can you provide us more information about what the practical is about and what the screenshots show?

 

[luo_ge]

Yeah probably should have done that.

In the table t represents time, x is change in position of the x component of the projectile (horizontal displacement) and y is the change in position of the y component (vertical displacement).

The 2 graphs just show the time vs x-component and time vs y-component respectively.