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Earn +20 ptsQ: How many feet will a rock fall in 3 seconds?
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You stand on a building 640 feet high and throw a rock inot the air with a velocity of 96 feet per second. How high is the rock 2 seconds after you throw it?
If the rock falls at 96 feet per second then multiply that by two to find out how far the rock traveled in two seconds which is 192 feet. Subtract 192 from 640 and the answer is 448. Therefore, the rock is 448 feet high after two seconds.
A rock dropped down a well takes 3 seconds to fall to the bottom of the well What is the depth of the well?
45
How many square feet does 1 Ton of rock salt cover?
It depends how densely it is distributed.
Suppose a rock is dropped off a cliff with an initial speed of 0 ms What is the rock's speed after 3 seconds in ms if it encounters no air resistance?
29.4
How much crushed red rock do you need for an area of 84 square feet by 2 inches?
Volume = (84) x (1/6) = 14 cubic feet = 0.52 cubic yard
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