A very small 4.8-g particle carrying a charge of +9.9 μC is fired with an initial speed of $8.0 \mathrm {~m} / \mathrm { s }$ directly toward a second small 7.8-g particle carrying a charge of + $5.2 \mu \mathrm { C } \text {. }$ The second particle is held fixed throughout this process. If these particles are initially very far apart, what is the closest they get to each other? (k = 1/4πε₀ = 9.0 × 10⁹ N ∙ m²/C²)

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The Answer of A very small 4.8-g particle carrying a charge of +9.9 μC is fired with an initial speed of $8.0 \mathrm {~m} / \mathrm { s }$ directly toward a second small 7.8-g particle carrying a charge of + $5.2 \mu \mathrm { C } \text {. }$ The second particle is held fixed throughout this process. If these particles are initially very far apart, what is the closest they get to each other? (k = 1/4πε₀ = 9.0 × 10⁹ N ∙ m²/C²)

A Very Small 4 8.0 m/s8.0 \mathrm {~m} / \mathrm { s }8.0 m/s

A Very Small 4 $8.0 \mathrm {~m} / \mathrm { s }$