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Physics CBSE Live product
Class 9
Work and energy
Introduction to energy and kinetic energy
6.
PYQ - Kinetic energy I
Question:
1
m.
\(Assertion\ (A)\): The kinetic energy, with any reference, must be positive.
\(Reason\ (R)\): In the expression for kinetic energy, the velocity appears with power \(2\) and mass is a scalar quantity.
Both A and R are true, and R is the correct explanation A.
Both A and R are true, and R is not the correct explanation of A.
A is true, but R is false.
A is false, but R is true.
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