Question

I have no idea how to calculate these...if you could just show me how to claculate one that would be greatly appreciated...

Table 5: Projectile Data for Rockets with Different Launch Angles
Launch Velocity (m/s)	Initial Angle	Time (s)	Average Time (s)	Predicted Range (m)	Actual Range (m)	Average Range (m)	Range % Error
1.3 m/s	90

Answer 1

Dear student, take a look at the formulas below. You will need from these formulas in order to fill in the chart.

First let us calculate the average time using the fomula below:

that is for the first case:

and not 5.3 as you put in the first block above OK? so for the first space or box in blank you just have to add up the times and then divide out the result by 4.

For the second it would be of six times measured, so the average time will be (6s+4s+5s+1s)/4=4seconds and so on.

Now for the next box to the right, we have teh predicted range, which can be calculated using the following formula:

where is the initial speed or launch velocity as they call it in your chart. so let