A cyclist coasts up a 9.00° slope, traveling 12.0 m along the road to the top of the hill. If the cyclist’s initial speed is 9.00 m/s, what is the final speed? Ignore friction and air resistance.

Explanation:

The final speed of the cyclist is determined by applying the Principle of Energy Conservation:

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this is poiselle's equation from fluid mechanic in physics. mech eng