Inertia and free fall!!

[peacefulheart]

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A 6kg bowling ball experiences a force due to gravity that is 2,000 times greater than the gravitational force experienced b a 3 g ping-pong ball. Which of the following properties explains why they fall at the same rate.

A. Momentum

B. Weight

C. Inertia.

D.Size

the answer is C. Could explain the relationship between inertia and free fall? thanks a lot.

 

[Deadlifts]

I suppose the reason they state "fall at the same rate" is to specify that gravity is the only significant force acting upon each object.

Newton's 2nd law: F=ma. You have to think of mass as the inertial mass and not simply all of the matter in an object. They give you values in the question that would yield equal accelerations.

 

[LoLCareerGoals]

From audio osmosis: "Inertia is objects ability to maintain its speed speed in response to external forces."
Here you have a massive object as responsive to larger external force as a small object is responsive to a smaller force.