[10] (8) A car is moving with constant acceleration while its horn is blowing, Just aller the car passes a stationary person, the person hears a frequency of 960 Hz. Ten seconds later, the frequency heard by the person has decreased to 913 Hy. When the car is stationary, its horn emits a sound whose frequency is 1200 11z. The speed of sound is 343 m/s. What is the acceleration of the car? Stationary person 1- 105