Calculating Velocity for Horizontal Motion in a Uniform Magnetic Field

AI Thread Summary
To maintain horizontal motion in a uniform magnetic field, the stone must move at a specific velocity that counteracts the magnetic force acting on it. Given the stone's negative charge of 0.010C and the magnetic field strength of 1.70T, the velocity must be calculated to avoid vertical deviation. The discussion highlights confusion regarding the orientation of the magnetic field and its implications on the stone's motion. Participants suggest that the problem may be misleading, potentially requiring a different perspective on the setup. Ultimately, understanding the relationship between charge, magnetic force, and velocity is crucial for solving the problem accurately.
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Homework Statement


A stone with a negative net charge of 0.010C is given a constant horizontal motion in a uniform magnetic field in the direction pointing into the page. The field's strength is 1.70T. How fast does the stone have to move in order for it to remain moving horizontally, without any vertical deviation?


Homework Equations


N/A


The Attempt at a Solution


The stone travels perpendicular to the force, so I think regardless of velocity, there will be vertical deviation.
 
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Yes, that seems right. :confused:

Maybe they intend you to lay the paper flat, so that the B field is pointing downwards?
 
The question's diagram shows the magnetic field pointing into page, so I suppose its a "trick" question. Nevertheless, thank you for your help. I spent a long time looking at this because its the last question on the list.
 
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