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inessss [21]
2 years ago
7

In this problem, you will use your prior knowledge to derive one of the most important relationships in mechanics: the work-ener

gy theorem. We will start with a special case: a particle of mass m moving in the x direction at constant acceleration a. During a certain interval of time, the particle accelerates from vi to vf, undergoing displacement s given by s=xf−xi.
Required:
a. Find the accerlation a of the particle
b. Find the force F acting on the particle
c. Find the net work W done on the particle by the external forces during the particle's motion.
Physics
1 answer:
Leya [2.2K]2 years ago
4 0

Answer:

Explanation:

a )

Work done by force = change in kinetic energy

F x s =  ( vf² - vi² ) / 2m

F =  ( vf² - vi² ) / 2ms

acceleration = ( vf² - vi² ) / 2m²s

b )

F = ( vf² - vi² ) / 2ms [ calculated above ]

c )

Work done by force

= change in kinetic energy

= ( vf² - vi² ) / 2m

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The concept required to solve this problem is linked to inductance. This can be defined as the product between the permeability in free space by the number of turns squared by the area over the length. Recall that Inductance is defined as the opposition of a conductive element to changes in the current flowing through it. Mathematically it can be described as

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Here,

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Answer:

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