Constant Acceleration Kinematics: A cart starts from rest and accelerates uniformly at 4.0 m/s2 for 5.0 s. It next maintains the velocity it has reached for 10 s. Then it slows down at a steady rate of 2.0 m/s2 for 4.0 s. What is the final speed of the car?
A. 20 m/s
B. 16 m/s
C. 12 m/s
D. 10 m/s
Answer: C
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What will be an ideal response?