A Proton Initially Moves Left to Right Along the X

question 43

Multiple Choice

A proton initially moves left to right along the x axis at a speed of 7.0 × 10³ m/s.It moves into an electric field,which points in the negative x direction,and travels a distance of 0.70 m before coming to rest.What acceleration magnitude does the proton experience?​

• A)7.0E+3 m/s²
• B)3.5E+7 m/s²
• C)1.8E+9 m/s²
• D)1.4E+12 m/s²
• E)2.5E+9 m/s²

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