Question

3. What is the gravitational force between a 70 kg physics student and her 1 kg textbook, at a distance of 1 meter? (This number will be very small!)Object 1 (m): 70 kg studentObject 2 (m2): 1 kg textbookDistance: (r): 1 meter

Answer 1

`\begin{equation*} 4.67*10^(-9)\text{ }N \end{equation*}`

Step-by-step explanation

Parameters given:

Mass of the student, M = 70 kg

Mass of the textbook, m = 1 kg

Distance, r = 1 m

To find the gravitational force acting between the student and the textbook, apply the formula for gravitational force:

`F=(GMm)/(r^2)`

where G = gravitational constant

Therefore, the gravitational force acting between the student and the textbook is:

`\begin{gathered} F=(6.67430*10^(-11)*70*1)/(1^2) \\ \\ F=4.67*10^(-9)\text{ }N \end{gathered}`

That is the answer.