A proton is projected in the positive x direction into a

Question

Solve the all parts of following question given below:

Question: A proton is projected in the positive x direction into a region of uniform electric field E with arrow = (-7.00 x 10⁵) i hat N/C at t = 0. The proton travels 6.30 cm as it comes to rest.

Part I: Determine the acceleration of the proton.

Part II: Determine the initial speed of the proton.

Part III: Determine the time interval over which the proton comes to rest.

Please show work on how to solve above question!