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Physics
Which of the following quantities are always positive in a simple harmonic motion?
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Q. Which of the following quantities are always positive in a simple harmonic motion?
NTA Abhyas
NTA Abhyas 2020
Oscillations
A
$\overset{ \rightarrow }{F}.\overset{ \rightarrow }{a}$
100%
B
$\overset{ \rightarrow }{v}.\overset{ \rightarrow }{r}$
0%
C
$\overset{ \rightarrow }{a}.\overset{ \rightarrow }{r}$
0%
D
$\overset{ \rightarrow }{F}.\overset{ \rightarrow }{r}$
0%
Solution:
As force is always in the direction of acceleration