The figure gives the x-t plot of a particle executing a one-dimensional simple harmonic motion. Then the signs of position & velocity variables of the particle at t = -1.2 sec respectively are:

C3.23

1 positive, negative
2 positive, positive
3 negative, positive
4 negative, negative

Subtopic:  Instantaneous Speed & Instantaneous Velocity |
 52%
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The position-time \((x\text-t)\) graphs for two children \(A\) and \(B\) returning from their school \(O\) to their homes \(P\) and \(Q\) respectively are shown in the graph. Choose the incorrect statement.

          

1. \(B\) reaches home faster than \(A.\)
2. \(B\) overtakes \(A\) on the road twice.
3. \(B\) walks faster than \(A.\)
4. \(A\) lives closer to the school than \(B.\)
Subtopic:  Instantaneous Speed & Instantaneous Velocity |
 60%
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The instantaneous speed is always:

1. less than the magnitude of instantaneous velocity.
2. greater than the magnitude of instantaneous velocity.
3. equal to the magnitude of instantaneous velocity.
4. may be less or greater than the magnitude of instantaneous velocity.

Subtopic:  Instantaneous Speed & Instantaneous Velocity |
 61%
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