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Per NCERT, an object has instantaneous velocities of +24 m/s and −24 m/s at two different instants. What is its INSTANTANEOUS SPEED in each case?
ASum is 0
BCannot determine speed without total time
C24 m/s in both cases — speed is the magnitude of velocity
D+24 and −24 — speed has sign
Answer & Solution
Correct answer: C. 24 m/s in both cases — speed is the magnitude of velocity
Per NCERT §2.2, speed = |velocity|. So both yield 24 m/s.
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