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If astronauts travel to the Moon and back to Earth again in 144 hours how many kilometers per hour do they travel?
Wiki User
∙ 9y ago
Around 5339 km/hour is the result for the "average speed" but the actual top speed would be much higher, and the lowest speed much lower. In the 148-hour trip by Apollo 8 in 1968, the spacecraft spent 2 hours in Earth orbit before traveling to the Moon, and 67 hours getting there. They spent 20 hours making 10 orbits of the Moon, at an average speed of about 6000 km/hr. On the last leg of their return to Earth, they traveled 400,000 km in 55 hours and reached a maximum speed of 40,000 km/hr.
The "average" distance to the Moon is 384,400 km, so the round trip is a minimum of 768, 800 km.
The actual surface to surface distance is about 8100 km less, since the distance is measured from the center of the Earth to the center of the Moon, but you would probably have to orbit anyway.
768800 km / 144 hours = 5338.88 km/hr
Wiki User
∙ 9y ago
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An object travels 8 m in the 1st second of travel 8m again during the 2nd second of travel and 8m again during the 3rd second its acceleration in meters per second per second is?
Speed is constant. Acceleration is zero.
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Zero. It is not getting any faster or slower
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Acceleration is zero velocity is constant at 8m every second acceleration is the gradient of velocity and the gadient of a constant = 0
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12
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