Vectors only point left or right in this problem. So, for numeric answers, right is positive (+) and left is negative (-). A negative-charge particle called a muon with charge -1.60 * 10^-19 C and mass 1.88 *10^-28 kg enters a region of space where a uniform electric field points right. Moving horizontally into this electric field with initial speed 4.00 * 10⁵ m/s, the muon travels for a time 2.50o * 10^-7 s before coming to a stop. (Ignore the gravitational force.) (a) What direction is the muon's acceleration? Right or left or zero? How do we know? (b) Before it stops, what direction is the muon moving. Right or left or not moving? How do we know? (c) What is the muon's acceleration in this electric field? Indicate direction with the sign of answer. (d) what is the electric field that stops this muon? Indicate direction with the sign of answer. (e) After entering this field, how far does the muon travel before stopping?