9 The space probe Rosetta was designed to investigate a comet. The probe consisted of an orbiter two parts separated, the lander was pushed towards the surface of the comet so that its change and a lander. The orbiter had a mass of 170 kg and the lander had a mass of 100 kg. When the in velocity towards the comet was 3.0ms-'. orbiter mass 170 kg lander mass 100 kg 3.0 ms-1 Assume that the orbiter and lander were an isolated system. The orbiter moved away from the comet during the separation. What was the change in the speed of the orbiter? А. 1.8 ms- B 2.3ms-1 C 3.0 ms -1 D 5.1 ms-
Answers
Answer:
The Rosetta spacecraft followed a 10-year mission to catch a comet and land a probe on it. Launched in 2004, the spacecraft arrived at its target, Comet 67P/Churyumov-Gerasimenko, on Aug. 6, 2014. After a setback in which a lander did not deploy correctly, the orbiter continued to study its comet for almost two years before plunging into the comet's surface.
Explanation:
The mission included the Philae lander, which made the first touchdown on the comet. Unfortunately, it did not stay down. Scientists at the European Space Agency said Philae unexpectedly bounced twice before landing on the comet when the probe's anchor-like harpoon system failed to fire. Philae ended up in shadow near a cliff face on the head of the 2.5-mile-wide (4 kilometers) comet, which scientists say is shaped like giant rubber duck. The probe fell silent on Nov. 14 as its solar batteries ran out of power. When the comet drew near the sun in July 2015, Philae briefly woke up, connecting to the orbiter a handful of time before falling silent forever.
On September 30, 2016, Rosetta made a planned final plunge into its comet, ending its mission. The controlled dive came as the comet headed toward the outer solar system, where the spacecraft would not be able to continue to operate under solar power.
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Answer:
A. 1.8 m s
Explanation:
100 x 3 = 300
300/170 = 1.76 m s