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Assume that no other forces act upon an object. What is the kinetic energy of a 4kg ball falling through the air at 9.8 m/s
A. 78.4 J
B. 192.0 J
C. 340.0 J
D. 384.0 J​


Sagot :

Answer:

B.192.0 j

Example:

a ball jump up and up 9.8 m/s because 4kg about 20+ second falling and jumping