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Chapter 10: Q.9 (page 255)

A compressed spring launches a block up an incline. Which objects should be included within the system in order to make an energy analysis as easy as possible?

Short Answer

Expert verified

Energy analysis is a quantitative method for calculating the amount of energy that enters and leaves a system. It is based on thermodynamics' first law.

Step by step solution

01

Introduction

A system is a component of the physical universe that has been chosen for study. The environment refers to everything that exists outside of the system. Except for its own impacts, the environment is ignored.

02

Explanation

Assume that there is no air resistance. To make energy analysis as simple as feasible, include the following objects:

(I)The stumbling block.

(II) The season of spring.

The third point is the inclination.

(IV) The planet (ground).

When all of these objects are chosen, the interactions are contained within the system, making energy analysis as simple as feasible. As a result, the inclination, the soil, the Block, and the spring should be picked as objects.

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Most popular questions from this chapter

A system in which only one particle can move has the potential energy shown in FIGUREEX10.31. What is the y-component of the force on the particle at y=0.5mand 4m?

A force does work on a 50gparticle as the particle moves along the following straight paths in the xy-plane: 25Jfrom (0m,0m)to (5m,0m); 35Jfrom (0m,0m)to(0m,5m); 鈥�5Jfrom (5m,0m)to (5m,5m); 鈥�15Jfrom (0m,5m)to (5m,5m); and 20Jfrom (0m,0m)to(5m,5m).

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a. In FIGUREEX10.27, what minimum speed does a 100gparticle need at point A to reach point B?

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You have been hired to design a spring-launched roller coaster that will carry two passengers per car. The car goes up a10-m-high hill, then descends 15m to the track鈥檚 lowest point. You鈥檝e determined that the spring can be compressed a maximum of 2.0m and that a loaded car will have a maximum mass of 400kg. For safety reasons, the spring constant should be 10% larger than the minimum needed for the car to just make it over the top.

a. What spring constant should you specify?

b. What is the maximum speed of a350kg car if the spring is compressed the full amount?
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