HP 48gII Graphing Calculator Manual do Utilizador descarregar pdf (Página 225)

Example 4 – Universal gravitation

Newton’s law of universal gravitation indicates that the magnitude of the

attractive force between two bodies of masses m

separated by a

distance r is given by the equation

Here, G is the universal gravitational constant, whose value can be obtained

through the use of the function CONST in the calculator by using:

We can solve for any term in the equation (except G) by entering the

equation as:

This equation is then stored in EQ:

Launching the numerical solver for this equation results in an input form

containing input fields for F, G, m1, m2, and r.

Let’s solve this problem using units with the following values for the known

variables m1 = 1.0×10

kg, m2 = 1.0×10

kg, r = 1.0×10

m. Also, enter

a value of 0_N in field F to ensure the proper solution using units in the

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