A 2 000-kg truck traveling at a speed of 6.0 m/s makes a 90° turn in a time of 4.0 s and emerges from this turn with a speed of 4.0 m/s. What is the magnitude of the average resultant force on the truck during this turn?
a. 4.0 kN
b. 5.0 kN
c. 3.6 kN
d. 6.4 kN
e. 0.67 kN
C
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