In attempting to pull a 1500-kg car out of a ditch, Arnold exerts a force of 300 N for three seconds, Bob exerts a force of 500 N for two seconds, and Cecil exerts a force of 200 N for four seconds. Who provided the greatest impulse?
A. Bob
B. Arnold
C. Cecil
D. They all exert an equal impulse on the car
Answer: A
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