Conservation of energy suggests that potential energy is converted to kinetic energy when an object falls in a vacuum.  FIGURE 1.png)
Velocity at impact can be determined as follows: V = Constant  figure 2.png)
(a) Determine the constant so that the equation is valid for h in ft and V in feet per second
(ft/s).
(b) Determine the constant so that the equation is valid for h in ft but V in mph. (c) If you drop an object from 455 ft, what is the velocity on impact with the ground in mph and ft/s?
 ANSWER.png)
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