Whether a rigid object in uniform rotation satisfies the first and second condition of equilibrium and it means that all the particles are in equilibrium state.
Answer to Problem 1DQ
Explanation of Solution
Consider the rigid body in uniform rotation. Uniform rotation means that the object moves with constant
An object moves with constant angular velocity cannot have a constant value of linear velocity. This is because, even its magnitude is same, continues change in direction will produce acceleration. Accelerating body must have a non-zero value of force. This means that object will not satisfy the first condition.
A rigid body with zero value of net torque does not mean that each and every particle is in
Conclusion: Thus, a uniform rotating rigid body obeys second condition of equilibrium, but not the first condition. Equilibrium state of a rigid body does not guarantee the equilibrium state of each and every particle of rigid body.
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