When estimating distances from a table of velocity data, it is not necessary that the time intervals are equally spaced. After a space ship is launched, the following velocity data is obtained. Use these data to estimate the height above the Earth's surface at 121 seconds. t (sec) v (ft/=) 0 0 11 242 17 374 23 506 35 770 60 1320 71 1837 121 4187 (a) lower estimate of distance traveled = 23.69 x miles (b) upper estimate of distance traveled = 60.95 x miles Round your final answers to two decimal places. Be careful of the UNITS