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Standard XII
Physics
Translational Equilibrium Revisited
How one can h...
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How one can have angular acceleration when ext force is zero?
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Q.
If the net force acting on a rigid body is zero it implies that body can't have angular acceleration.
Q.
If the net force acting on a rigid body is zero it implies that the body must have linear and angular acceleration.
Q.
How can acceleration be zero when velocity is constant?
Q.
Find the angular acceleration when the angular velocity is zero?
Q.
Assertion (A) : A wheel may be rotated with uniform angular velocity even though the tangential forces are applied on it.
Reason (R) : Angular acceleration of wheel is zero when tangential force and frictional force produce torques equal in magnitude and opposite in direction.
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