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33 votes
Calculate the magnitude of a gravitational force between two object 400kg and 800kg separated by a distance of of 45m (take G =6.67 * 10^-11 Nm^2 kg^-2)

User Marek Dzikiewicz
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1 Answer

9 votes
9 votes

Answer:

Step-by-step explanation:

The formula is


F_g=(Gm_1m_2)/(r^2) and filling in:


F_g=((6.67*10^(11))(400)(800))/((45^2)) and multiply and divide all that out to get


F_g=1.1*10^(-8) It should really only be 1 significant digit since 400 and 800 both have only 1 significant digit, but I used 2. It should be


F_g= 1 × 10⁻⁸ N

User Brotcrunsher
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