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How to Use the Calculator

Select the Calculation Type:
 From the dropdown menu labeled “Choose a Calculation”, pick the type of calculation you want to perform.
 Options include:
 Find v(avg)  Given v, u: For calculating average velocity.
 Find u  Given v, v(avg): For calculating initial velocity.
 Find v  Given u, v(avg): For calculating final velocity.

Input the Required Values:
 Depending on your selection, input the required velocities:
 For Find v(avg)  Given v, u: Enter the initial (u) and final (v) velocities.
 For Find u  Given v, v(avg): Enter the final velocity (v) and average velocity (v(avg)).
 For Find v  Given u, v(avg): Enter the initial velocity (u) and average velocity (v(avg)).
 Ensure that all inputs are positive real numbers.
 Depending on your selection, input the required velocities:

Choose Units:
 Use the Units dropdown to select the unit of velocity that corresponds to your data (e.g., m/s, km/h).

Set Significant Figures:
 Choose the number of significant figures you want in your result using the Significant Figures dropdown.

Calculate:
 Click the Calculate button to get the result.
 The calculator will display the answer along with the formula used, in a clear math format.

Clear the Fields:
 Use the Clear button to reset the form if you want to perform another calculation.
Examples

Example 1: Find Average Velocity (v(avg))
 Scenario: You know the initial velocity (u) is 5 m/s and the final velocity (v) is 15 m/s.
 Steps:
 Select Find v(avg)  Given v, u.
 Enter
5
in the Initial Velocity (u) field.  Enter
15
in the Final Velocity (v) field.  Keep the units as
m/s
.  Click Calculate.
 Result: The calculator displays
10 m/s
as the average velocity, with the formula $v_{avg} = \frac{v + u}{2}$

Example 2: Find Initial Velocity (u)
 Scenario: You know the final velocity (v) is 20 m/s and the average velocity (v(avg)) is 12 m/s.
 Steps:
 Select Find u  Given v, v(avg).
 Enter
20
in the Final Velocity (v) field.  Enter
12
in the Average Velocity (v(avg)) field.  Keep the units as
m/s
.  Click Calculate.
 Result: The calculator displays
4 m/s
as the initial velocity, with the formula $u = 2 \times v_{avg} – v$

Example 3: Find Final Velocity (v)
 Scenario: You know the initial velocity (u) is 7 m/s and the average velocity (v(avg)) is 10 m/s.
 Steps:
 Select Find v  Given u, v(avg).
 Enter
7
in the Initial Velocity (u) field.  Enter
10
in the Average Velocity (v(avg)) field.  Keep the units as
m/s
.  Click Calculate.
 Result: The calculator displays
13 m/s
as the final velocity, with the formula $v = 2 \times v_{avg} – u$
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