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An astronaut inside a small space ship orbiting around earth cannot detect gravity.,,but if the space station orbiting around earth has large size he can...
WHY???
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8 Answers
11See in a big space ship the astronaut is not perfectly orbiting the earth due to the large size and therefore experiences gravity
3OK I KNOW THAT AN ASTRONAUT INSIDE A SMALL SPACE SHIP CANT DETECT GRAVITY BUT I DONT KNOW YYYYYYYYYYYYYY. PLS CLR ME
11See
The astronaut will be radially accelerating with g since it is orbiting
and the force of accerelation will also be g and hence experiences no force of gravity
3CONFUSING VIRANG THE ASTRONAUT WILL EXPERIENCE THE PSEUDO FORCE.HE FEELS THAT HE WILL BE ACCELARATING RADIALLY OUTWARDS.
11See take it from the view point of a inertial frame
See g will be attracting it
Therefore using the formula g = V2/R
It decides the velocity and raidus of the orbit.
Therefore radial Acceleration is g
Now
N-Gravitaional attraction*m = m* radial Acceleration
Since Gravitaional attraction*m = m* radial Acceleration
Therefore N = 0
Hence it will not feel the attraction of gravity
1well..taking the order of "largeness" to be very large...here's what i think..[3]
in the frame of the spaceship, the ship experiences an outward force of mv2/r , which acts on its centre of mass. So, anything present at the COM of the spaceship will not experience gravity. But since the ship is very large, if the astronaut changes his position w.r.t it, he changes his distance from earth....although his orbital velocity remains same as that of the ship...therefore, mv2/r and g do not cancel out...