# Physics help! Mars has a mass of 6.46 x 1023 kg and a radius of 3.39 x 106 m. What is the acceleration due to?

Newton’s law of gravity: F = GMm / r² Your second law of motion is: F = ma Replace F in the law of gravity with ma and solve for a: ma = GMm / r² a = GM / r² = (6, 67 x 10⁻ ¹¹N∙m²/kg²)(6.46 x 10²³kg) / (3.39 x 10^6m)² = 3.75m/s² So the weight is: w = mg = (66.0kg)(3 ,75m /s²) = 248N

I hope this helps you.

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