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23 Nov 2019
Q1. A 72.0-kg man stands on a spring scale in an elevator.Starting from rest, the elevator ascends, attaining its maximumspeed of 1.20 m/s in 0.800 s. It travels with this constant speedfor the next 5.00 s. The elevator then undergoes a uniformacceleration in the negative goes ydirection for 1.50 s and comes to rest. What does the springscale register (a) before the elevator starts to move? (b) duringthe first 0.800 s? (c) while the elevator is traveling at constantspeed? (d) during the time it is slowing down?
Q1. A 72.0-kg man stands on a spring scale in an elevator.Starting from rest, the elevator ascends, attaining its maximumspeed of 1.20 m/s in 0.800 s. It travels with this constant speedfor the next 5.00 s. The elevator then undergoes a uniformacceleration in the negative goes ydirection for 1.50 s and comes to rest. What does the springscale register (a) before the elevator starts to move? (b) duringthe first 0.800 s? (c) while the elevator is traveling at constantspeed? (d) during the time it is slowing down?
28 Jun 2023
