Question

QUESTION 1

1. Why did the Mars Climate Orbiter crash on the surface of Mars?

   	A.	one program output thrust in terms of foot-pounds, and another program expected thrust to be expressed in terms of newtons
   	B.	the probe lost contact with the Jet Propulsion Laboratory when it entered the Martian atmosphere
   	C.	a bug in the computer program caused the vehicle to consume too much fuel on the way to Mars, leaving inadequate supply for landing
   	D.	the extreme cold of deeps space caused the computer to crash
   	E.	before programmers went on strike at subcontractor Lockheed Martin, one of them sabotaged the flight control software

Answer 1

The answer is :

one program output thrust in terms of foot-pounds, and another program expected thrust to be expressed in terms of newtons

This failed due to engineers failed to convert the units from english to metrics.This is the main reason of the failure.