Q 8.      An automobile vehicle has a mass of 1500 kg. What must be the force between the vehicle and road if the vehicle is to be stopped with a negative acceleration of 1.7 m s-2?

Answers (1)
D Devendra Khairwa

By Newton's law of motion, we have :

                                                     F\ =\ ma

and                                                      =\ 1500\times 1.7

or                                                  F\ =\ -2550\ N      

Thus the retarding force required is 2550 N in the direction opposite to the motion of the vehicle

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