Velocity of a charged particle as it approaches infinity

In summary, the conversation discusses a physics problem involving the calculation of the force exerted by three charges on a new charge. The individual describes their attempt at solving the problem, but is unable to determine the correct answer. They mention a potential error in setting the net force equal to energy instead of calculating the actual force.
  • #1
Nasir Jones
1
0

Homework Statement


shit_zps1gi9n06p.png


Homework Equations


F = k(q1q1/r^2)
K = (mv^2)/2

The Attempt at a Solution


I got number 18 easy enough, number 19 seems simple but I'm not getting the right answer. I'm calculating Force exerted by each charge on the new charge using F = k(q1q1/r^2) for the three charges, adding the X and Y components together, setting the net force equal to (mv^2)/2 and solving for v. The answer I get is C, but the correct answer is A. Not sure why.
 

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  • #2
Nasir Jones said:
setting the net force equal to (mv^2)/2
A force cannot be said to be equal to a quantity of energy.
 
  • #3
The writers of multiple choice problems sometimes determine all the mistakes the problem solver might make and include these wrong answers as choices. You should take another approach to solving this problem. Any one of several will work.
 

Related to Velocity of a charged particle as it approaches infinity

1. What is the velocity of a charged particle as it approaches infinity?

The velocity of a charged particle as it approaches infinity is dependent on the initial velocity and the strength of the electric or magnetic field it is in. As the particle gets closer to infinity, its velocity will increase but will never reach the speed of light.

2. Does the velocity of a charged particle change as it approaches infinity?

Yes, the velocity of a charged particle changes as it approaches infinity. This change is due to the increasing strength of the electric or magnetic field that the particle is in.

3. How does the electric or magnetic field affect the velocity of a charged particle as it approaches infinity?

The electric or magnetic field affects the velocity of a charged particle as it approaches infinity by exerting a force on the particle. This force causes the particle to accelerate, resulting in a change in velocity.

4. Can a charged particle reach the speed of light as it approaches infinity?

No, a charged particle cannot reach the speed of light as it approaches infinity. According to the theory of relativity, the speed of light is the maximum attainable speed for any particle, and it can only be reached by particles with no mass.

5. Is the velocity of a charged particle as it approaches infinity constant?

No, the velocity of a charged particle as it approaches infinity is not constant. It will continue to increase as the particle gets closer to infinity, but it will never reach a constant speed due to the effects of the electric or magnetic field it is in.

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