Physics

Thinking Heavier Objects Fall Faster

Assuming a heavier object hits the ground before a lighter one dropped beside it.

Quick check

Why students make it

Everyday experience with air resistance, like a feather versus a rock, suggests weight controls falling speed.

The rule done right

Ignoring air resistance, all objects fall with the same acceleration g≈9.8 m/s2g \approx 9.8\,\text{m/s}^2 regardless of mass. A heavier object needs more force to accelerate, and the two effects cancel.

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