In 2003 at Holloman Air Force Base in New Mexico, test engineers set a world record by moving 192 lb payload at 6,453 miles per hour in a rocket sled. The rocket sled track, built in 1954, is 15.44 km in length. Assume the sled moved at the maximum speed for the entire length of the track, how long (in seconds) would it take for the sled to reach the end of the track? Can someone help me set this problem up, please?

Question

In 2003 at Holloman Air Force Base in New Mexico, test engineers set a world record by moving 192 lb payload at 6,453 miles per hour in a rocket sled. The rocket sled track, built in 1954, is 15.44 km in length. Assume the sled moved at the maximum speed for the entire length of the track, how long (in seconds) would it take for the sled to reach the end of the track?   Can someone help me set this problem up, please?

anonymous · Answer

First, convert the length of the track into miles. Then use the speed of the cart to find the answer.

anonymous · Answer

1 mi = 1.60934km

Therefore:
15.44km * 1mi/1.60934km * hr/6453mi * 60min/hr * 60sec/min

anonymous · Answer

Awesome!  I had some of the unit conversions flipped the wrong way.  Thank you.