A charged particle is located in a vacuum between two horizontal metal plates, as illustrated. The particle’s acceleration is $7.15 \times 10^{11}\,\text{m s}^{-2}$ downward. Its mass is $3.34 \times 10^{-27}\,\text{kg}$. Calculate the charge on the particle.
- A$+1.6 \times 10^{-19}\,\text{C}$
- B$-1.6 \times 10^{-19}\,\text{C}$
- C$+1.6 \times 10^{-17}\,\text{C}$
- D$-1.6 \times 10^{-17}\,\text{C}$