HP 50g manual Step

Step 4:

Step 5:

View the five equations in the Projectile Motion set. All five are used interchangeably in order to solve for missing variables (see the next example).

#EQN# #NXEQ# #NXEQ# #NXEQ# #NXEQ#

Examine the variables used by the equation set.

#VARS#

and —as ˜needed

Now use this equation set to answer the questions in the following example.

Example:You estimate that on average professional goalkeepers can punt a soccer ball a distance (R) of 65 meters downfield at an

elevation angle (0) of 50 degrees. At what velocity (v0) do they kick it? How high is the ball halfway through its flight? How far could they drop kick the ball if they used the same kicking velocity, but changed the elevation angle to 30 degrees? (Ignore the effects of drag on the ball.)

Step 1: Start solving the problem.

#SOLV#

Step 2: Enter the known values and press the soft menu key corresponding to the variable. (You can assume that x0 and y0

are zero.) Notice that the menu labels turn black as you store values. (You will need to press Lto see the variables that are initially shown.)

Page 19-2