Physics

Problem

A proton is released from rest at point

A

where the electric potential is

500\,\text{V}

and moves to point

B

where the potential is

200\,\text{V}

. Neglecting any non-electrostatic forces, determine the speed of the proton when it reaches

B

. (Take

e=1.6\times10^{-19}\,\text{C}

and

m_p=1.67\times10^{-27}\,\text{kg}

.) a)

7.6\times10^{5}\,\text{m s}^{-1}

7.6\times10^{4}\,\text{m s}^{-1}

2.4\times10^{5}\,\text{m s}^{-1}

1.0\times10^{7}\,\text{m s}^{-1}