1 Below is a representative plot of the data from lab M2 Use

#1. Below is a representative plot of the data from lab M2. Use the graph to find a value of the initial x-velocity with an uncertainty range of 95% and make sure to give answer with the proper uncertainty formating. It\'s a little hard to tell, but there are 23 data points on the graph.?

a) Initial ?x-velocity? =

b) ± (?) m/s²

^#2 For this question you will need to look at the regression results from the sample M2 data that was handed out with Lesson 3. Remember from lab that you are able to predict the A parameter in the y vs x regression by using the y-acceleration and the initial x-velocity in the formula,

Parameter A = ay / (2Vx,i²)

There are regression outputs for y vs t & x vs t in the reading for Lesson 3 that allow you to determine ay & Vx,i. Use these values to predict Parameter A.

Now look at the regression output for y vs x that you did for the Lesson 3 quiz to find Parameter A and its standard error. How many standard errors away from the regression value is the predicted value you just calculated?
Give your answers to 3 sig. figs., but make sure to use unrounded numbers throughout your calculations.

a) Predicted value of A = (?) m^-1

b) Number of Standard Errors between the predicted value of A and the value of A from the regression of y vs. x =

Give answer as a positive value (?) m^-1

Projectile\'s Horizontal Position as a Function of Time y = 1.3958x-1.1316 R2 0.99735 1.8 1.6 E 1.4 1.2 0.8 0.6 12 14 1.6 18 Time (seconds)

Solution