Plz HELP A 2250 kg car traveling to the west at 17.8 m/s slows down uniformly.
a) How long would it take the car to come to a stop if the force on the car is 8140 N to the east? Let East be positive. Answer in units of s.
b) What is the car’s displacement during the time it takes to stop? Answer in units of m

An electron and a proton are held on an x axis, with the electron at x = + 1.000 m and the proton at x = - 1.000 m. part a how much work is required to bring an additional electron from infinity to the origin? express your answer with the appropriate units. part b if, instead of the second electron coming in from infinity, it is initially at x = + 20.00 m on the axis and is given an initial velocity of 100.0 m/s toward the origin, does it reach the origin? part c how close to the origin does it come?