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### 1.2.5 Example

The graphs show how the variation with time of the velocity, v and the acceleration, a of a body when it is oscillating with simple harmonic motion.

(a) Determine the period, T.

(b) Sketch the variation with time of the displacement, x, of the oscillating body

[ 2.09 s, x = 2 sin( 3t )]

### 1.2.5.1 Solution:

a) maximum velocity , v_{0} = x_{0}ω = 6 m/s

maximum acceleration a_{0} = x_{0}ω^{2} = 18 m/s^{2}

thus dividing the 2 equations, we get ω = 3 rad/s

therefore since $\omega =\genfrac{}{}{0.1ex}{}{2\pi}{T}$

$T=\genfrac{}{}{0.1ex}{}{2\pi}{3}$

$T=2.09s$

_{0}= x

_{0}ω = 6 m/s and we now know ω = 3 rad/s earlier

_{0}(3) = 6

x

_{0}= 2 m

using the model to test check out your answer!

### 1.2.5.2 Model:

### Translations

Code | Language | Translator | Run | |
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### Software Requirements

Android | iOS | Windows | MacOS | |

with best with | Chrome | Chrome | Chrome | Chrome |

support full-screen? | Yes. Chrome/Opera No. Firefox/ Samsung Internet | Not yet | Yes | Yes |

cannot work on | some mobile browser that don't understand JavaScript such as..... | cannot work on Internet Explorer 9 and below |

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