At launch the space shuttle weighs 4.5 million pounds. When it is launched from rest, it takes 8.00 to reach 157km/h , and at the end of the first...

At launch the space shuttle weighs 4.5 million pounds. When it is launched from rest, it takes 8.00 to reach 157km/h , and at the end of the first 1.00min its speed is 1570km/h. What is the average acceleration (in m/s^2) of the shuttle between 8.00s and the end of the first 1.00min ? Assuming the acceleration is constant during each time interval (but not necessarily the same in both intervals), what distance does the shuttle travel during the first 8.00s ? and what distance does the shuttle travel during the interval from 8.00 to 1.00min ?