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A 72kg man stands on a spring scale in an elevator, starting from rest, the elevator ascends attaining its maximum speed of 1.2m/s in 0.8sec. The elevator travels with this constant speed for 5.0sec undergoes a uniform negative acceleration for 1.5sec, and then comes to rest. What dose the spring scale register:(a) before the elevator starts to move (b) during the first 0.8sec of the elevator ascent (e) while the elevator is traveling at constant speed (d) during the elevator is negative acceleration

A 72kg man stands on a spring scale in an elevator, starting from rest, the elevator ascends attaining its maximum speed of 1.2m/s in 0.8sec. The elevator travels with this constant speed for 5.0sec undergoes a uniform negative acceleration for 1.5sec, and then comes to rest. What dose the spring scale register:(a) before the elevator starts to move (b) during the first 0.8sec of the elevator ascent (e) while the elevator is traveling at constant speed (d) during the elevator is negative acceleration

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A 72kg man stands on a spring scale in an elevator, starting from rest, the elevator ascends attaining its maximum speed of 1.2m/s in 0.8sec. The elevator travels with this constant speed for 5.0sec undergoes a uniform negative acceleration for 1.5sec, and then comes to rest. What dose the spring scale register:(a) before the elevator starts to move (b) during the first 0.8sec of the elevator ascent (e) while the elevator is traveling at constant speed (d) during the elevator is negative acceleration
Transcribed Image Text:A 72kg man stands on a spring scale in an elevator, starting from rest, the elevator ascends attaining its maximum speed of 1.2m/s in 0.8sec. The elevator travels with this constant speed for 5.0sec undergoes a uniform negative acceleration for 1.5sec, and then comes to rest. What dose the spring scale register:(a) before the elevator starts to move (b) during the first 0.8sec of the elevator ascent (e) while the elevator is traveling at constant speed (d) during the elevator is negative acceleration
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