Q.

The velocity of a particle executing simple harmonic motion along x-axis is described as v2=50-x2, where x represents displacement. If the time period of motion is x7s,the value of x is ______.                  [2026]


Ans.

(44)

Given velocity of a particle, v2=50-x2

By comparing this to the standard equation

v2=ω2A2-ω2x2

∴  ω2=1⇒ω=1

Time period T=2πω=2π1=2π sec

Now compare it with x7=2π

⇒x=2×227×7=44