dakotaadkins20
30.01.2020 •
Physics
Which of the following describes inertia?
a balanced force
the opposite of velocity
an unbalanced force
a resistance to change in motion
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Ответ:
A resistance to change in motion describes inertia.
Inertia is the resistance of any physical object to any change in its state of motion (this includes changes to its speed, direction or state of rest). It is the tendency of objects to keep moving in a straight line at constant velocity.
The correct answer between all the choices given is the last choice. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.
Ответ:
Explanation:
Momentum before = momentum after
m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
(60 kg) (0 m/s) + (70 kg) (0 m/s) = (60 kg) v + (70 kg) (1.0 m/s)
v = -1.2 m/s
Her velocity would be 1.2 m/s in the opposite direction.