What is a Spreadsheet?

A spreadsheet is a rectangular table whose dimensions are changeable to fit with the information.

Here is an applet that supports very simple spreadsheet operations. This spreadsheet is used as a program to solve an engineering problem. This problem is: A person at the height of ho (meters) above the ground will throw a baseball (negligible mass) with the initial velocity Vo (m/s) and an initial angle (degree) in the interval [-180,180] with the horizontal axis. The value of gravity (m/s^2) is changeable depending on the position of that person (on Earth or other planets). If we have all the data for these elements, we will get the answer for:

• Vo(y) : initial velocity in the vertical direction.
• Vo(x) : initial velocity in the horizontal direction.
• t1[s] : time for the baseball reaches the maxium height.
• t2[s] : time for the baseball falls from its maximum height to the ground.
• t2[s] : the total time that the ball has traveled.
• Ymx[m]: the maximum height (vertical).
• Xmx[m]: the maximum range (horizontal).

Points to note: The aswer is not correct 100% because the value of pi is rounded to 3.14. If we set the angle= 90 (degree), the horizontal displacement should be zero but it's not in this case. The horizal displacement will be a very small number.

• Wikipedia reference for spreadsheets .