User's Manual

012-05479B Mini Launcher
9
®
(Total Average Distance = Distance to paper edge + Average Distance)
Part B: Predicting the Range of the Ball Shot at an Angle
➀ Adjust the Mini Launcher to launch at an angle between 20 and 60 degrees above the horizontal. Record
this angle in Table 1.2.
➁ Using the initial velocity and vertical distance found in the first part of this experiment, calculate the new
time of flight and the new horizontal range for a projectile launched at the new angle. Record in Table
1.2.
➂ Draw a line across the middle of a white piece of paper and tape the paper on the floor so the line is at
the predicted horizontal distance from the Mini Launcher. Cover the paper with carbon paper.
➃ Shoot the ball ten times.
➄ Measure the ten distances and take the average. Record in Table 1.2.
Analysis
➀ Calculate the Total Average Distance. Record in Table 1.2.
(Total Average Distance = Distance from Edge of Paper + Horizontal Distance to paper edge)
➁ Calculate and record the percent difference between the predicted value and the resulting average
distance when shot at an angle.
➂ Estimate the precision of the predicted range. How many of the final 10 shots landed within this range?
Trial Number Distance from Edge of Paper
1
2
3
4
5
6
7
8
9
10
Average
Total Average Distance
Angle above horizontal = ______________ Horizontal distance to paper edge = ____________
Calculated time of flight = _____________ Predicted Range = ____________
Table 1.2 Confirming the Predicted Range