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The displacement of a particle varies ac...

The displacement of a particle varies according to the relation `y = 4(cos pi t + sin pi t)`. The amplitude of the particle is

A

8

B

-4

C

4

D

`4sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
For given relation
Resultant amplitude `= sqrt(4^(2) +4^(2)) + 4 sqrt(2)`
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