Question

The 160Mg160-\mathrm{Mg} train travels with a speed of 80 km/h80 \mathrm{~km} / \mathrm{h} when it starts to climb the slope (tanθ=110)\left(\tan\theta = \frac{1}{10}\right). If the engine exerts a traction force F\mathbf{F} of 1/201 / 20 of the weight of the train and the rolling resistance FD\mathbf{F}_D is equal to 1/5001 / 500 of the weight of the train, determine the deceleration of the train.

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Draw the free-body diagram of the system.

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