A space station, far from any large masses, can be spun so that people inside th

Question

A space station, far from any large masses, can be spun so that people inside the station feel the effects of an "artificial gravity." This works because A. the station is an inertial reference system. B. the people experience an inertial force. C. living in outer space doesn't require an "up" or "down" direction. D. gravity extends throughout space. Any reference system moving with a constant velocity with respect to an inertial system is known as an accelerating reference system. A. True B. False A train is traveling along a straight horizontal track at a constant speed that is only slightly less than that of light. If an observer in the train drops a ball and an observer on the ground measures its acceleration, she will obtain a value A. equal to g B. greater than g C. less than g

Explanation / Answer

Solution:

5) Option B is Right , The people experience and intertial force. We can create artificial Gravity by accelrating the space craft. Nwo accelerating the space craft by just speeding it up will consume fuel and energy but there is one more efficient way to do that and that is rotating in circle moving in a circle at a constant speed is a kind of accleration and that cause a force on the astronaut.

6)False, Any reference System moving with a constant velocity with respect to an inertial system is again an intertial System.

7)She will obtain the value equal to g If she and the ball are in train together, and observer observing her drop the ball is in same place

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