Question

A body oscillates with shm according to equation x=2cos(2pit+pi/2) where x is a meter and t is second a)displacement b)velocity c)acceleration

Answer 1

Answer:

We have x=Acos(wt+∅)

=>v=-Awsin(wt+∅)

=>v=5×2π×cos(3π+π/4)=10πcos(13π/4).w

, displacement can be calculated from ur given equation only be substituting the value.

Also, (3)

a=d/dt(Awsin(wt+∅))=>a=Aw²cos(wt+∅)

a=5cos(2π×1.5+π/4) m/s².

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