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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 cable with 20.0N of tension pulls straight up on a 1.50kg block that is initially at rest. What is the block’s speed after being lifted 2.00m? Solve this problem using work and energy.

The spring in FIGURE EX10.22a is compressed by ∆x. It launches the block across a frictionless surface with speed v0. The two springs in FIGURE EX10.22b are identical to the spring of Figure EX10.22a. They are compressed by the same ∆x and used to launch the same block. What is the block’s speed now?

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a. Let the zero of potential energy be at x=0m.

What is the potential energy at x=1.0,2.0,3.0,and4.0m? Hint: Use the definition of potential energy and the geometric interpretation of work.

b. Suppose the particle is shot to the right from x=1.0mwith a speed of 25m/s. Where is its turning point?

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