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Physics - Work-Energy Theorem

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A 700kg glider is flying in straight and level flight at 90 m/s. What is the initial kinetic energy of the glider and if the pilot decides to trade airspeed for altitude how much alitude can the pilot gain while slowing the glider to 25 m/s? (Neglect loss of energy due to air friction)

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(a) KE = (1/2)m(v^2) = (1/2)(700)(90^2) = 2835000 J.

(b) Final ...

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