AP Physics C: Electricity & Magnetism 8.1 B Describe the Electric and Gravitational Forces That Result From Interactions Between Charged Objects with Mass Questions

Practise AP Physics C E&M 8.1.B by comparing Coulomb-force effects on particle acceleration and judging how an added electric force changes tension.

Exam points

Relate Coulomb-force scaling and particle masses to compare proton, deuteron and electron accelerations.
Judge how an added electrostatic force changes string tension in a charged-sphere setup.

[Maximum number: 1]

32. A proton p (charge +e, mass $m_{p}$ ) collides head-on with a deuteron d (charge +e, mass $2 m_{p}$ ). During the collision the particles interact through an electrostatic Coulomb force. Which of the following statements is true about the accelerations $\vec{a}_{p}$ of the proton and $\vec{a}_{d}$ of the deuteron during the collision?

$\vec{a}_{p}=-2 \vec{a}_{d}$

$\vec{a}_{p}=-\vec{a}_{d}$

$\vec{a}_{p}=-\vec{a}_{d} / 2$

$\vec{a}_{p}=\vec{a}_{d}$

$\vec{a}_{p}=2 \vec{a}_{d}$

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AP Physics C: Electricity & Magnetism 8.1 B Describe the Electric and Gravitational Forces That Result From Interactions Between Charged Objects with Mass Questions question 1