A projectile is fired from point O at the edge of a cliff, as shown in figure 1, with an initial velocity components v0x = 60.0 m/s and v0y = 175 m/s. The projectile rises and then falls into the sea at point P. The time of flight of the projectile (the time it spends in the air) is 40.0s and the projectile experiences no appreciable air resistance in flight. a) Find the height of the cliff. b) Find the speed of the projectile just before it hits the water at point P.

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