An object travels at +64.1 m/s for 400 m and then moves at -17.0 m/s for 700 m. The average speed of the object is ab.c m/s. . Input your value for ab.c in the blank . Include a negative sign if your answer is negative . Do not include a positive sign if your answer is positive. . Do not include units Your Answer: Answer Question 3 (1 point) An object travels at +53.5 m/s for 500 m and then moves at -15.0 m/s for -900 m. The average velocity of the object is a.bc m/s. . Input your value for a.bc in the blank . Include a negative sign if your answer is negative 15 Do not include a citive