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$1$ $1t$ $1f\dfrac {d^{2}r} {dt^{2}}=t,$ then show that $r\times \dfrac {d\pi } {dt}$ is a constant vector.
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Qanda teacher - udaysingh
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clear sir
all the best
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Student
This is a math's question in my book.... you apply physics in it.... is this the one and only process??
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Qanda teacher - udaysingh
yes its math no phy enginering mathamatics
in this question also use some concept phy dear
than finally proved
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Student
Ok... thanks for your contribution... ❤️
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Qanda teacher - udaysingh
blcm sir
plz evalute ans
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Student
From where??