Year 12s: what will be the first way you research your future options? >>

Voltage required to speed up proton

A proton has a mass of 1.67 x 10^-27 kg
Calculate the magnitude of potential difference needed to accelerate it from rest to speed of 2.77 x 10^5 m/s in vacuum?

So ...should I someuse use kinematics equations here?

:ta:

for the acceleration in answers! :smile:

Reply 1

username3331778

no acceleration needed, the proton loses electrical potential energy and gains kinetic energy

Reply 2

username2889812

Original post by yolkie

no acceleration needed, the proton loses electrical potential energy and gains kinetic energy

PRSOM

but they haven't provided Kinetic energy...so how will I find out v? :hmmmm:

Reply 3

username3331778

Original post by Spannerin'moi

PRSOM

but they haven't provided Kinetic energy...so how will I find out v? :hmmmm:

They require a specific speed and you have the mass of a proton, you should know the charge or it will be on your data sheet. You should be familiar with the equations used in circuits in year 12, they apply here.