How long would it take for a penny to fall from the top of the Empire State Building? The building is 381 meters.

Question

Physics

Keira Pugh

1 January, 14:06

How long would it take for a penny to fall from the top of the Empire State Building? The building is 381 meters.

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Answers (1)

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Lennon Zamora · Answer 1

Without air resistance, the distance an object falls is

D = (1/2) (gravity) (time) ²

381 m = (1/2) (9.8 m/s²) (time) ²

(time) ² = (381 m) (4.9 m/s²)

= (381/4.9) seconds²

Time = √ (381/4.9 sec²)

= 8.8 seconds (rounded)