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SOLUTIONS TO EXERCISE 25
6.67 * 10^(-11) m^3 kg^(-1) s^(-2) * 5.98 * 10^24 kg (a) a = GM/r2, so a = ------------------------------------------------------ (6.38 * 10^6 m)^2 = 9.8 m/s^2. 6.67 * 10^(-11) m^3 kg^(-1) s^(-2) * 2.0 * 10^30 kg (b) a = GM/r2, so a = ------------------------------------------------------ (1.5 * 10^11 m)^2 = 0.0059 m/s^2. The Sun accelerates Earth much less than Earth accelerates an object on its surface. Interesting... |