Draw a ray diagram to show image on a concave mirror, between C and of​

The formula to get the distance is D=speed x time. From your given below speed is equal to 330 m/s and the time is equal to 0.40 seconds. Here is the solution: D=330 m/s (0.40s) D= 132 m If you are wondering where the unit "s" go, it is being cancelled because "s divided by s" is equal to 1 that is why the only unit left is m or meter that gives us the hint that it is the distance.