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Rotational Motion question

2021 · 26 Feb · Shift 1 · Q46
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  5. /2021 · 26 Feb · Shift 1 · Q46

Rotational Motion question

2021 · 26 Feb · Shift 1 · Q46

JEE MainPhysicsRotational MotionMCQ+4 / −1
Four identical solid spheres each of mass 'm' and radius 'a' are placed with their centres on the four corners of a square of side 'b'. The moment of inertia of the system about one side of square where the axis of rotation is parallel to the plane of the square is :
  1. A
    45ma2{4 \over 5}m{a^2}54​ma2
  2. B
    85ma2+mb2{8 \over 5}m{a^2} + m{b^2}58​ma2+mb2
  3. C
    45ma2+2mb2{4 \over 5}m{a^2} + 2m{b^2}54​ma2+2mb2
  4. D
    85ma2+2mb2{8 \over 5}m{a^2} + 2m{b^2}58​ma2+2mb2
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