A body loses 392 J of potential energy in falling through 5 m.
If the gravitational acceleration is 9.8 m/s2 , then the body has a
mass of a. 49 kg c. 40 kg b. 78 kg d. 8 kg
A body loses 392 J of potential energy in falling through 5 m. If the gravitational acceleration is 9.8 m/s2 , then the
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