4. You might have heard of Galileo's famous experiment to demonstrate that all objects, regardless of their weight and assuming no air resistance, fall at the same acceleration (Figure 5). Use Newton's Second Law of Motion to show that for all objects, regardless of their mass, the acceleration due to gravity will be g, which we approximate as 9.8 m/s².

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!