Find the object's positions x1, x2, x3, and x4 at times t1 = 2.0s, t2 = 4.0s, t3 = 13s, and t4 = 17s. Express your answers in meters to one significant figure, separated by commas.
a) x1 = 5.2 m, x2 = 9.1 m, x3 = 22.6 m, x4 = 28.3 m
b) x1 = 2.8 m, x2 = 7.3 m, x3 = 19.9 m, x4 = 24.7 m
c) x1 = 4.6 m, x2 = 8.7 m, x3 = 21.3 m, x4 = 26.2 m
d) x1 = 6.4 m, x2 = 11.5 m, x3 = 24.8 m, x4 = 30.4 m