A body oscillates with SHM according to the equation (in SHM unit ), `x=5"cos"(2pit+(pi)/(4))` . Its instantaneous displacement at t=1 s isA. `(sqrt(2))/(5)`mB. `(1)/(sqrt(3))`mC. `(1)/(2)` mD. `(5)/(sqrt(2))` m

A body oscillates with SHM according to the equation (in SHM unit ), `

1.	A body oscillates with SHM according to the equation (in SHM unit ), `x=5"cos"(2pit+(pi)/(4))` . Its instantaneous displacement at t=1 s isA. `(sqrt(2))/(5)`mB. `(1)/(sqrt(3))`mC. `(1)/(2)` mD. `(5)/(sqrt(2))` m
Answer» Correct Answer - D (e) Given, `x=5"cos"(2pit+(pi)/(4))` (where, x is a displacement) `impliesx=5"cos"(2pi+(pi)/(4))" "("at " t=1 s)` `" "[because "cos"(360^(@)+theta)="cos"theta]` `implies x=5"cos"(pi)/(4)impliesx=5xx(1)/(sqrt(2))` `therefore x=(5)/(sqrt(2)) m`

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A body oscillates with SHM according to the equation (in SHM unit ), `x=5"cos"(2pit+(pi)/(4))` . Its instantaneous displacement at t=1 s isA. `(sqrt(2))/(5)`mB. `(1)/(sqrt(3))`mC. `(1)/(2)` mD. `(5)/(sqrt(2))` m

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