The ratio of maximum acceleration to maximum velocity in a simple harmonic motion is 10 s–1. At, t = 0 the displacement is 5 m. What is the maximum acceleration? The initial phase is π/4
Question
The ratio of maximum acceleration to maximum velocity in a simple harmonic motion is 10 s–1. At, t = 0 the displacement is 5 m. What is the maximum acceleration? The initial phase is π/4
Solution
In simple harmonic motion, the maximum acceleration (Amax) is given by the formula:
Amax = ω² * A
where ω is the angular frequency and A is the amplitude of the motion.
From the problem, we know that the ratio of maximum acceleration to maximum velocity (Vmax) is 10 s^-1. The maximum velocity in simple harmonic motion is given by:
Vmax = ω * A
So, we can write the given ratio as:
Amax/Vmax = ω = 10 s^-1
We also know that at t = 0, the displacement x = A * cos(Φ), where Φ is the initial phase. Substituting the given values:
5 m = A * cos(π/4)
Solving for A, we get:
A = 5 m / cos(π/4) = 5√2 m
Now, we can find the maximum acceleration using the formula Amax = ω² * A:
Amax = (10 s^-1)² * 5√2 m = 500√2 m/s²
So, the maximum acceleration is 500√2 m/s².
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