Consider a proton in a uniform electric field directed left to right, as shown in the figure. For both paths the initial speed of the proton is the same, but the direction of the initial velocity is different. Part (A) Compare the change in electric potential energy along path A to the change in electric potential energy along path B. ΔUA = ΔUB ΔUA > ΔUB
Consider a proton in a uniform electric field directed left to right, as shown in the figure. For both paths the initial speed of the proton is the same, but the direction of the initial velocity is different. Part (A) Compare the change in electric potential energy along path A to the change in electric potential energy along path B. ΔUA = ΔUB ΔUA > ΔUB
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Consider a proton in a uniform electric field directed left to right, as shown in the figure. For both paths the initial speed of the proton is the same, but the direction of the initial velocity is different.
Part (A) Compare the change in electric potential energy along path A to the change in electric potential energy along path B.
| ΔUA = ΔUB |
| ΔUA > ΔUB |
| There is not enough information given - we need either the initial speed or the size of the electric field. |
| ΔUA < ΔUB |
Part (B) Compare the speed of the proton at the end of path A with the speed at the end of path B.
| vA = vB |
| vA < vB |
| It is impossible to tell - you need more information. |
| vA > vB |
Transcribed Image Text:E
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B
A
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