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Per NCERT §5.9 Fig 5.8, in a spring-mass system at maximum extension (x = ±x_max), the kinetic energy of the block is which?
AZero
BEqual to PE
CHalf of total energy
DMaximum
Answer & Solution
Correct answer: A. Zero
NCERT Fig 5.8: at extreme points, mass is momentarily at rest, K = 0 and V = E_total.
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