Iona Prep Physics Lessons

 


This page calculates answers using conservation of energy.

The first type of problem assumes falling from rest, as in the following question:

Assume an object falls from rest from a height of meters. How fast will it be going immediately before it hits the ground?
(Click anywhere outside the data box above to see the answer.)

Answer is m/s. DO NOT BE FOOLED by the large number of significant figures. This page calculates the answer without considering significant figures. You should round your answer to the proper number of significant figures according to the number of significant figures in your measurement.


The other type of problem is when you fire something vertically upward and are asked to find how high it will go:

An object is fired upward at m/s. How high will it go before it stops and begins to fall back down?
(Click anywhere outside the data box above to see the answer.)

Answer: m. DO NOT BE FOOLED by the large number of significant figures. This page calculates the answer without considering significant figures. You should round your answer to the proper number of significant figures according to the number of significant figures in your measurement.


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Last Update: by Bro. R.W.Harris