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Today at 7:11 PM
Physics

Answered

A 400 kg moving object has a kinetic energy of 15,000 J. What is the speed of the object?
A) 5.6
B) 8.7
C) 7.9

Answer :

yafetteferi65 yafetteferi65

Today at 7:16 PM

Answer: B, 8.7m/s

Explantion:
V² =2kE/m
v² = 30,000 J/ 400kg
V² = 75
√v² =√ 75
V= 8.7 m/s

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