(Answered) Steep safety ramps are built beside mountain highways to

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Steep safety ramps are built beside mountain highways to enable vehicles with defective brakes to stop. A 10-ton truck enters a 15?o ramp at a high speed v0 = 108 ft/s and travels for 6 s before its speed is reduced to 36 ft/s. Assuming constant deceleration, determine

(a) The magnitude of the braking force,

(b) The additional time required for the truck to stop. Neglect air resistance and rolling resistance.

1688_resistance and rolling resistance.jpg

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