The elevator designers chose the magnitude of the maximum positive acceleration

Question

The elevator designers chose the magnitude of the maximum positive acceleration when ascending to be significantly greater than the magnitude of the maximum negative acceleration (deceleration) when descending; however, both magnitudes of acceleration are significantly smaller than the magnitude of the acceleration due to gravity. Hypothesize the rational of the elevator designers to choose the magnitude of the maximum positive acceleration when ascending to be significantly greater than the magnitude of the maximum negative acceleration (deceleration) when descending.

Explanation / Answer

when elevator going up

Fnet = W + ma

downwards

Fnet = W - ma

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