## Physics: Principles with Applications (7th Edition)

$27.4 \frac{m}{s^2}$
Equation 5-5 gives g, the acceleration due to gravity near the surface of Earth. If the mass of Earth were to increase by 2.80, other things being equal, g would increase by the same factor. $$(2.80)(9.80 \frac{m}{s^2}) = 27.4 \frac{m}{s^2}$$