Question

An electron travels in the x⃗  direction at constant speed v. It enters a region of uniform electrical field E⃗  pointing in the y⃗  direction (perpendicular to the electron's original motion). From the moment the electron enters the region of electric field, it is displaced a distance L in the y⃗  direction in the time that it travels a distance d in the x⃗  direction.

If the electron's velocity in the x⃗  direction had been twice as large, how much would it have been deflected in the y⃗  direction in the time it travelled a distance d in the x⃗  direction?

A. 4L

B. 2L

C. L

D. L/2

E. L/4

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Answer 1

Answer:

An acceleration can cause speed to increase, decrease, and even stay the same! Acceleration tells you the rate at which the velocity is changing. ... The acceleration can change the magnitude and/or the direction of the velocity. Speed is only the magnitude of the velocity.