A semitrailer is coasting downhill along a mountain highway


A semitrailer is coasting downhill along a mountain highway when its brakes fail. The driver pulls onto a runaway-truck ramp that is inclined at an angle of 14o above the horizontal. The semitrailer coasts to a stop after traveling 154 m along the ramp. Determine what was the trucks initial speed? Ignore air resistance and friction.

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Physics: A semitrailer is coasting downhill along a mountain highway
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