1
answer
0
watching
101
views
plumotter150Lv1
6 Oct 2020
A 72-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.2 m/s in 0.80 s. The elevator travels with this constant speed for 5.0 s, undergoes a uniform negative acceleration for 1.5 s, and then comes to rest. What does the spring scale register:
(a) Before the elevator starts to move?
(b) During the first 0.80 s of the elevator’s ascent?
(c) While the elevator is traveling at a constant speed?
(d) During the elevator’s negative acceleration?
A 72-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.2 m/s in 0.80 s. The elevator travels with this constant speed for 5.0 s, undergoes a uniform negative acceleration for 1.5 s, and then comes to rest. What does the spring scale register:
(a) Before the elevator starts to move?
(b) During the first 0.80 s of the elevator’s ascent?
(c) While the elevator is traveling at a constant speed?
(d) During the elevator’s negative acceleration?
1
answer
0
watching
101
views
For unlimited access to Homework Help, a Homework+ subscription is required.
Shelley Sundae NaparotaLv10
23 Nov 2020