A proton starts from rest and passes through five identical gaps in a linear accelerator. Each gap provides an accelerating potential difference of 2.50 kV. What is the speed of the proton after it has passed through all five gaps? (Proton mass mp=1.67×10−27kg, charge magnitude e=1.6×10−19C.)
a) 1.5×106m⋅s−1
b) 7.0×105m⋅s−1
c) 2.2×106m⋅s−1
d) 1.1×106m⋅s−1