HP 50g User Manual download pdf (Page 176)

Page 19-3

0 *!!!!!!X0!!!!!+ 0 *!!!!!!Y0!!!!!+ 50 *!!!!!!Ô0!!!!!+

L65*!!!!!!R!!!!!+

Step 3:

Solve for the velocity, v

. (You solve for a variable by pressing

! and then the variable’s menu key.)

!*!!!!!!V0!!!!!+

Step 4:

Recall the range, R, divide by 2 to get the halfway distance,

and enter that as the x-coordinate. Notice that pressing the

right-shifted version of a variable’s menu key causes the

calculator to recall its value to the stack. (The small square next

to the R on the menu label indicates that it was used in the

previous calculation.)

@ ##R#-

2/LL*!!!!!!X!!!!!+

Step 5:

Solve for the height, y. Notice that the calculator finds values for

other variables as needed (shown by the small squares) in

order to solve for the specified variable.

! *!!!!!!Y!!!!!+

Step 6:

Enter the new value for the elevation angle (30 degrees), store

the previously computed initial velocity (v

) and then solve for R.

30 ##¢0#-

™L *!!!!!!V0!!!!!+

! *!!!!!!!!R!!!!!!!+

SG49A.book Page 3 Friday, September 16, 2005 1:31 PM

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HP 50g User Manual Page 176