Question

If mama drives a car in a circle path, from point A and come back to the point A. With path's long is 1000 m and velocity is 100m/s, time's taken is 10 s. Hence, Determine the displacement vs time's graph

Answer 1

$L=2R\cdot\sin(\frac{\alpha}{2})=2R\cdot\sin(\frac{\omega t}{2})=2R\cdot\sin(\frac{2\pi t}{2T})=$

$=2R\cdot\sin(\frac{\pi t}{10})$

$l=2\pi R\to R=l/(2\pi)=1000/(2\pi)=159.2\ (m)$ . So, the displacement vs time

$L=2\cdot 159.2\cdot\sin(\frac{\pi t}{10})=318.3\cdot\sin(\frac{\pi t}{10})$ . Answer