An object is fired at 300 ms at an angle of 350 degrees, Ask an Expert

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An object is fired at 30.0 m/s at an angle of 35.0 degrees from a vertical cliff that is h meters (where h is unknown quantity) above the sea. It is observed to hit the water 4.50 seconds after it was fired.

i) calculate h, the hight of the cliff.

ii) calculate the velocity vector of the object in polar form when it hits the water.

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