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19.6m

Q: A brick is released with no initial speed from the roof of a building and strikes the ground in 2.00 s encountering no appreciable air drag How tall in meters is the building?

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The initial released version of the KJV is known as the 1611 version.

I suggest: - Take the derivative of the function - Find its initial value, which could be done with the initial value theorem That value is the slope of the original function.

You can't.You only know what half the sum of (initial + final) is, (it's the average), but you don't know what the initial and final are.

By the Way, guys, this is based on the equation H= -16t2+vt+s

Its initial speed cannot be 20 m, as stated in the question. Secondly, if the initial speed is correctly given, then there is no need to calculate it!

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it would be slower

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the INITIAL velocity does not change. It is constant. however, the velocity changes depends on the friction and inclination of the inclined plane.

You will calculate the initial rate of reaction from a curve rather than measure how much gas is released because you are looking at products in there molecular nature.