一个激光导弹跟踪系统正在白沙导弹靶场进行测试,它能在由于地面干扰使雷达不能跟踪的低空进行跟踪。该系统据说能够跟踪每小时飞行1000哩的涂白色靶,精度0.9哩为4吋。每5毫秒计算一次位置 A laser missile tracking system is being tested at the White Sands Missile Range, which tracks low altitudes that radar can not track due to ground disturbances. The system is said to track white-coated targets flying 1,000 miles an hour at 4-inch accuracy at 0.9-mile accuracy. Calculate the position every 5 milliseconds