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Is mechanical energy conserved in real situations?

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Anil Kumar G.
Anil Kumar G.Lv10
23 Dec 2020
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

In a motion of the projectile freely under gravity, its (neglect air friction):

A) Total mechanical energy is conserved

B) momentum is conserved

C) Momentum and mechanical energy both are conserved

D) none is conserved 

A baseball is thrown vertically upward and feels no air resistance. As it is rising__

  1. Its kinetic energy is conserved but momentum is not conserved.
  2. Both its kinetic energy and momentum are conserved.
  3. Its momentum is not conserved but its mechanical energy is conserved.
  4. Both its mechanical energy and momentum are conserved.
  5. Its gravitational potential energy is not conserved but momentum is conserved.

Q8.23 An apple falls from a tree and feels no air resistance. As it is falling, which of these statements about it are true? (a) Only its momentum is conserved; (b) only its mechanical energy is conserved; (e) both its momentum and its mechanical energy are conserved; (d) its kinetic energy is conserved.

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