Question 3 of 20
A crate falling from a plane is part of a closed system that has 24450 J of
mechanical energy. If the kinetic energy of the crate increases from 10,000 J
to 15,000 J, what happens to the gravitational potential energy of the system?
A. It decreases from 15,000 J to
10,000 J.
B. It increases from 9450 J to
14,450 J.
C. It decreases from 14,450 J to
9,450 J.
O D. It increases from 10,000 J to
15,000 J.
Answer
5 (1 оценка)
1
MisterBrainly 7 months ago
Светило науки - 2681 ответа - 0 помощи

Old potential energy:-

  • PE+KE=ME
  • PE=ME-KE
  • PE=24450-10000
  • PE=14450J

New potential energy

  • PE=24450-15000
  • PE=9450J

Option B is correct

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