Frequency \\\\(f=\\dfrac{14}{25}Hz\\\\)Angular velocity \\\\(\\omega =2\\pi f= \\dfrac{2 \ imes 14\\pi }{25}rad/s=3.52rad/s\\\\)Acceleration is \\\\(a=\\omega ^{2}r=3.52^{2}\ imes 0.8=9.9m/s^{2}\\\\)The direction is along the radius at every point towards the centre.