(1) Which of the equations below for position, x, as a function of time, t, is surely wrong? x(t) = 2m - (5 m/s2)t2 b) x(t) =2m + (2m/s)t- (5 m/s2)t2 c) x(t) =-(2 m/ s3)t2 - (2 m/ s3) +3 d) x(t) =-(2 m/s)t - (2m/s3)+3 e) x(t) = 2m cos(t/ (2s)) (2) Which of the following cases represents the position of a particle which is approaching the origin at t=0? a) x(t) = 2m - (5 m/s2)t2 b) x(t) = 2m + (2m/s)t - (5 m/ s2)t2 c) x(t) =-2m - (2 m/s)t - (2 m/s2)t2 - (2 m/s3)+3 d) x(t) = 3m - (2 m/s)t - (2 m/$3)+3 e) x(t) = 2m cos(t/ (2s))