Which of the following quantities measured from different inertial reference frames are the same?
A
Force
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B
Velocity
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C
Displacement
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D
Kinetic energy
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Solution
The correct option is D
Kinetic energy
Explanation for correct option :
An item or body only accelerates in an inertial frame when a physical force is applied, and in the absence of a net force, both a body at rest and a body in motion will continue to move more consistently.
The value of kinetic energy is constant no matter what inertial frame it is measured from, unlike the values of the other three quantities, which are vector quantities.
Explanation for incorrect option.
Displacement and velocity can changes with different inertial frame but energy are always the same.