A proton is projected in the positive x direction into a region of uniform electric field E = (-6.50 x 105) î N/C at t = 0. The proton travels 6.90 cm as it comes to rest. (a) Determine the acceleration of the proton. magnitude m/s2 direction ---Select--- v (b) Determine the initial speed of the proton. magnitude m/s direction ---Select-.. v (c) Determine the time interval over which the proton comes to rest.

A proton is projected in the positive x direction into a region of uniform electric field E = (-6.50 x 105) î N/C at t = 0. The proton travels 6.90 cm as it comes to rest. (a) Determine the acceleration of the proton. magnitude m/s2 direction ---Select--- v (b) Determine the initial speed of the proton. magnitude m/s direction ---Select-.. v (c) Determine the time interval over which the proton comes to rest.