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A body oscillates in SHM according to the equation (in SI unit), . Its instantaneous displacement at t = 1s is
detailed solution
Correct option is C
Given, x=5 cos 2πt+π4 (where, x is displacement)⇒ x=5 cos 2π+π4 (At t = 1s)⇒ x=5cosπ4 [∵ cos (360° + θ) = cos θ]⇒ x=5×12=52 mTalk to our academic expert!
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One end of an ideal spring is connected with a smooth block with the other end with rear wall of driving cabin of a truck as shown in figure. Initially, the system is at rest. If truck starts to accelerate with a constant acceleration ‘a’ , then the block (relative to truck ):
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