Calculate the average force an outside object would have to exert to bring a 1200-kg car to rest in 15 cm when the car had an initial speed of 2.0 m/s (about 4.5 mph)
A) 1.8 × 104 N
B) 1.6 × 104 N
C) 5.4 × 104 N
D) 6.5 × 105 N
E) 3.2 × 104 N
B
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