Calculating Force of Gravity Between Earth & Mars

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To calculate the gravitational force between a newborn baby (3 kg) and Mars (6.4 x 10^23 kg) at their closest distance (5.6 x 10^10 m), the formula F = G m1m2/d^2 is used. The gravitational constant G is 6.67300 × 10^-11 m^3 kg^-1 s^-2. Substituting the values into the equation gives F = (6.67300 × 10^-11) * (6.4 x 10^23) * (3.00) / (5.6 x 10^10)^2. The calculation can be completed using a calculator to find the exact force. This method effectively demonstrates how to apply the gravitational force formula in practical scenarios.
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1. Calculate the force of gravity between a newborn baby (mass=3kg) and the planet Mars (mass=6.4 X 10^23 kg) when Mars is at its closest to Earth (distance=5.6 X 10^10 m).



2. F= G m1m2/d2



3. I got this far and I don't know how to break down the equation any further: F= G M m /R^2= 6.67300 × 10^-11 m^3 kg^-1 s^-2 *6.4 x 10^23 kg *3.00 kg/(8*10^10 m)^2
 
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I haven't checked all your numbers but it looks reasonable. Just calculate what the result is on your calculator.
 

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