7. An object is dropped from a building with height Y strikes the ground with speed V. If an object is dropped from a bu
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7. An object is dropped from a building with height Y strikes the ground with speed V. If an object is dropped from a bu
7. An object is dropped from a building with height Y strikes the ground with speed V. If an object is dropped from a building with height 4Y, how fast is it moving when it hits the ground? a. 2V b. 4V c. 8V d. 16V e. none of the above
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