An ice sled powered by a rocket engine starts from rest on a largefrozen lake and accelerates at +48 ft/s2. Aftersome time t1, the rocket engine is shut downand the sled moves with constant velocity v for a timet2. If the total distance traveled by the sledis 17600 ft and the total time is 90 s.Find the following.
(a) The times t1 andt2.
t1 s
t2 s
(b) The velocity v.
At the 17600 ft mark, the sled begins toaccelerate at -23 ft/s2.
(c) What is the final position of the sled whenit comes to rest?
(d) How long does it take to come to rest?

Want an answer?

No answer yet. Submit this
question to the community.