Chapter - 2 Force and Laws of Motion

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Force and Laws of Motion


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 ms^{-2} ?


Given: Mass of the vehicle, m = 1500 kg

Acceleration, a = - 1.7  ms^{-2} 

By second law of motion,

F = ma

F = 1500 kg 	imes - 1.7 ms^{-2}

F = - 2550 N

Therefore, the force of 2550 N is acts between the vehicle and road, in the opposite direction of motion of the vehicle.

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