**Problem Description:**A 86-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 0.76 s. The elevator travels with this constant speed for 5.0 s, undergoes a uniform negative acceleration for 1.6 s, and then comes to rest.**Questions and Answers:**(a) What does the spring scale register before the elevator starts to move?- **Answer:** 782 N(b) What does the spring scale register during the first 0.76 s of the elevator's ascent?- **Answer:** 921 N(c) What does the spring scale register while the elevator is traveling at constant speed?- **Answer:** 782 N(d) What does the spring scale register during the elevator's negative acceleration?- **Answer:** 534 N

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Description: **Problem Description:**A 86-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 0.76 s. The elevator travels with this constant speed for 5.0 s, undergoes a uniform neg

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ABI-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 12 m/s in 0.76s The elevator travels with this constant speed for 50 undergoes a uniform negative acceleratiion for 1.6 s, and then comes to rest

ABI-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 12 m/s in 0.76s The elevator travels with this constant speed for 50 undergoes a uniform negative acceleratiion for 1.6 s, and then comes to rest

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Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows:

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**Problem Description:**

A 86-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 0.76 s. The elevator travels with this constant speed for 5.0 s, undergoes a uniform negative acceleration for 1.6 s, and then comes to rest.

**Questions and Answers:**

(a) What does the spring scale register before the elevator starts to move?

- **Answer:** 782 N

(b) What does the spring scale register during the first 0.76 s of the elevator's ascent?

- **Answer:** 921 N

(c) What does the spring scale register while the elevator is traveling at constant speed?

- **Answer:** 782 N

(d) What does the spring scale register during the elevator's negative acceleration?

- **Answer:** 534 N

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