Answer to Question #826 in Mechanics | Relativity for Michael
An object is allowed to fall freely near the surface of a planet. The object falls 45 m in the first 3.0 sec. The acceleration due to gravity o this planet is...?
From the equation of the motion
h = gt2/2;
g = 2h / t2;
g = 2*45 / 9 = 10 m/sec2