The Rocket Sled At Holloman AFB there is a rocket sled that set a land speed rec

Question

The Rocket Sled

At Holloman AFB there is a rocket sled that set a land speed record of 2.885 km/s in 2003. It accelerated an 87 kg payload from dead stop at x = 0.0 to this final speed in 6.03 s and ran it into a concrete target at x = 5.046 km. From this data determine the following:

(a) Average uniform acceleration during the test using initial and final speed and the time of flight.

(b) The final speed of the sled if acceleration during the test were constant over a distance equal to the length of the track.

(c) Since the two quantities above differ from one another, what can explain the difference?

(d) Make a sketch of what acceleration looked like as a function of time or x.

Explanation / Answer

acceleration = change in speed /time = 2.885/6.03= .47844 km/s
= 478.44 m/s

final speed =
v^2 = 2 xa x s
v^2 = 2 x .47844 x 5.046 = 2.1973 km/s

the difference is beacause the acceleration was not constant it varied during the time interval of 6.03 s

pls rate!

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