Question

A system is at rest for t < 0. It is given by the following equation. If steady state is reached at t = 0, then the value of angle A is given by

a.

0

b.

45 °

c.

- 45°

d.

Answer: (b).45 °

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Q. A system is at rest for t < 0. It is given by the following equation. If steady state is reached at t = 0, then the value of angle A is given by

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