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78. In 1998, NASA launched Deep Space 1 (DS-1), a spacecraft that successfully flew by
the asteroid named 1992 KD (which orbits the sun millions of miles from the
earth). The propulsion system of DS-1 worked by ejecting high-speed argon
ions out the rear of the engine. The engine slowly increased the velocity of
DS-1 by about +9.0 m/s per day. (a) How much time (in days) would it take to
increase the velocity of DS-1 by +2700
m/s? (b) What was the acceleration of DS-1 (in m/s2)? |
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