A) a cost
B) -a cos t
C) a sin t
D) -a sin t
Correct Answer: B
Solution :
Given, x = a cos t \[v=\frac{dx}{dt}=\frac{d}{dt}(a\cos t)\] \[=-a\sin t\] \[\therefore \] \[\frac{dv}{dt}=\frac{d}{dt}(-a\sin t)=-a\cos t\]You need to login to perform this action.
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