Calculating Force of Gravity Between Earth & Mars

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SUMMARY

The discussion focuses on calculating the gravitational force between a newborn baby with a mass of 3 kg and Mars, which has a mass of 6.4 x 10^23 kg, when the distance between them is 5.6 x 10^10 m. The formula used is F = G m1m2/d², where G is the gravitational constant (6.67300 x 10^-11 m³ kg^-1 s^-2). Participants confirmed the equation setup and encouraged calculating the final result using a calculator.

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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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