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QUESTION
A 100-kg boulder sits on the top of a 50-meter high cliff. It falls off. How fast is it traveling just before it hits the ground? A. 31 m/s B. 490 m/s C. 98 m/s D. 245 m/s
A 100-kg boulder sits on the top of a 50-meter high cliff. It falls off. How fast is it traveling just before it hits the ground?
A. 31 m/s
B. 490 m/s
C. 98 m/s
D. 245 m/s
