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17 December, 18:24

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 15.0° above the horizontal. the semitrailer coasts to a stop after traveling 159 m along the ramp. what was the truck's initial speed? neglect air resistance and friction

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  1. 17 December, 19:43
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    I think it is 180 because it is heading to high
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