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JEE Advanced 2020 Full Test 1 Paper 1

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Question : 14

Total: 54

The surface mass density (mass per unit area) of a semi circular disc of radius R varies as σ=|

is a constant velocity along positive x axis and

is positive vector with respect to origin. It is kept on smooth horizontal surface with flat surface in contact with surface. Now, force F ' is applied in such a way that it moves translationally without any rotation. The value of h is ‌

then find value of k.

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