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If second law is applied to a rigid body
  • a)
    the acceleration is that of the centre of mass
  • b)
    the acceleration is the average of all particles in the body
  • c)
    the acceleration is that of any particle in the body
  • d)
    none of the above
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
If second law is applied to a rigid bodya)the acceleration is that of ...
The net external force on the rigid body is always equal to the total mass times the translational acceleration (i.e., Newton's second law holds for the translational motion, even when the net external torque is nonzero, and/or the body rotates).
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If second law is applied to a rigid bodya)the acceleration is that of ...
If more than one torque acts on a rigid bodyabout a fixed axis, then the sum of the torques equals the moment ofinertia times the angular acceleration: . is Newton's second law for rotation and tells us how to relate torque, moment of inertia, and rotational kinematics.
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Community Answer
If second law is applied to a rigid bodya)the acceleration is that of ...
A is correct because the body is usually replaced by its centre of mass/gravity
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