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What will happen if the traction force is negative?(a) The vehicle will accelerate(b) The vehicle will decelerate(c) The vehicle will first accelerate and then decelerate(d) The vehicle will run at a constant speedThis question was posed to me in an online quiz.This interesting question is from Vehicles and Powertrain in portion Emission Control Methods, Electric & Conventional Vehicles of Automobile Engineering

Answer»

The correct CHOICE is (b) The VEHICLE will DECELERATE

To elaborate: Fnet = mvehicle* avehicle = FTRACTION – Frolling – Faerodynamic. If the Ftractionis negative, then Fnet will be more negative ⇒ avehicle is negative. Therefore the vehicle will decelerate.



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