Falling Object The velocity, V, in feet per second, after an object has fallen a

Question

Falling Object The velocity, V, in feet per second, after an object has fallen a distance, h, in feet, can be found by the formula V = Squareroot 64.4 h. Find the velocity of a pen after it has fallen 200 feet A ladder is placed against a house. If the base of the ladder is 5 feet from the house and the ladder rests on the house 12 feet above the ground, find the length of the ladder. (see figure on the right.)

Explanation / Answer

Q1 Given velocity given by sqrt(64.4h) where V = Feet/seconds h= Feet Given h= 200 feet => Velocoity = 113.4901 feet Q2 Given base of ladder is 5 feet(b) from wall Ladder is aligned to 12 m(h) from bottom of wall Hence length of ladder is given by L = sqrt (h^2 + b^2) = 13 feet

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