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Sagot :
The descriptions of both the car's motion and of the proposed action are
defective, so the question is unanswerable.
-- The car's motion could be described in terms of its speed or its kinetic
energy, but "100 kN" is meaningless as a description of motion.
-- To describe a force as negative ("-200N") is meaningless as long as
neither a frame of reference nor a positive direction has been defined.
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