Acceleration and relativity question

In summary, the need to consider relativity in this situation is dependent on the speed of the particle being a large fraction of the speed of light. Without any indication of this, it is not necessary to take relativity into account and the answer may simply be that it is a requirement of the problem or the teacher's instructions.
  • #1
asdf1
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In this question, "Find the acceleration of a particle of mass m and velocity v when it is acted upon by the constant force F, where F is parallel to v."
Why do you need to consider relativity?
 
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  • #2
This question is kind of equivalent to "find Newton's second law" taking relativity under consideration.

hint: F = dp/dt
 
  • #3
asdf1 said:
In this question, "Find the acceleration of a particle of mass m and velocity v when it is acted upon by the constant force F, where F is parallel to v."
Why do you need to consider relativity?

Who told you you needed to consider relativity? Relativity only comes into play when the speed is a large fraction of the speed of light. There doesn't appear to be anything in the problem you quoted to indicate that. Was there more to the problem? It might well be that the answer to the question "Why do you need to consider relativity?" is "Because the problem (or your teacher) said to!"
 
  • #4
well, the problem was an example in a modern physics book I'm looking at,
but my first reaction was the same as quasar987~
 

FAQ: Acceleration and relativity question

What is acceleration?

Acceleration is the rate of change of an object's velocity over time. In other words, it is how much an object's speed and/or direction changes over a certain period of time.

How is acceleration related to force?

According to Newton's Second Law of Motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This means that the greater the force on an object, the greater its acceleration will be.

What is the difference between acceleration and deceleration?

Acceleration refers to an increase in speed, while deceleration refers to a decrease in speed. Both involve changes in velocity, but acceleration is a positive change and deceleration is a negative change.

What is the theory of relativity?

The theory of relativity, developed by Albert Einstein, is a fundamental theory in physics that explains the relationship between space and time. It consists of two parts: the special theory of relativity, which deals with objects moving at constant speeds, and the general theory of relativity, which includes acceleration and gravity.

How does acceleration affect time and space?

According to the theory of relativity, time and space are not absolute, but are relative to the observer's frame of reference. Acceleration can cause changes in an observer's perception of time and space, such as time dilation (time passing slower for a faster-moving object) and length contraction (objects appearing shorter when moving at high speeds).

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