2) A wrecking ball is being used to knock down a building. One tall
unsupported concrete wall remains standing. If the wrecking ball hits the
wall near the top, is the wall more likely to fall over by rotating at its base or
by falling straight down? Explain your answer. How is it most likely to fall if
it is struck with the same force at its base? Note that this depends on how
firmly the wall is attached at its base.
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