(A) The astronaut inside an orbiting space station is in a state of continuous free fall towards the Earth because the only force acting on them is gr

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If both Assertion and Reason are true and Reason is the correct explanation of Assertion.

(A) The astronaut inside an orbiting space station is in a state of continuous free fall towards the Earth because the only force acting on them is gravity.Since the space station and the astronaut are falling with the same acceleration (the acceleration due to gravity at that altitude),the normal force exerted by the floor on the astronaut is zero.This condition is perceived as weightlessness.Therefore,both Assertion $(A)$ and Reason $(R)$ are true,and Reason $(R)$ is the correct explanation of Assertion $(A)$.

Class 11 Physics Gravitation Motion of Satellites in Circular Orbits and Planets in Elliptical Orbits

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Assertion $(A):$ An astronaut in an orbiting space station above the earth experiences weightlessness.
Reason $(R):$ An object moving around the earth under the influence of earth's gravitational force is in a state of 'free fall'.

AIIMS 2015 All AIIMS

A
If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
B
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C
If Assertion is true but Reason is false.
D
If both Assertion and Reason are false.

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Gravitation

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Motion of Satellites in Circular Orbits and Planets in Elliptical Orbits

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If $\rho$ is the density of the planet,the time period of a nearby satellite is given by

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DifficultIIT 1989

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The distances of two planets $A$ and $B$ from the sun are $r_A$ and $r_B$ respectively, such that $r_B = 100 r_A$. The ratio of the orbital speed of planet $A$ to that of planet $B$ is (both planets are revolving around the sun in circular orbits).

DifficultMHT CET 2026

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The orbit of a geo-stationary satellite is circular. The time period of the satellite depends on:
$(i)$ mass of the satellite
(ii) mass of the earth
(iii) radius of the orbit
(iv) height of the satellite from the surface of the earth
Which of the following is correct?

MediumTS EAMCET 2008

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If the mass of a satellite is doubled and the time period remains constant,the ratio of the orbital radii in the two cases will be:

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Assertion $(A):$ An astronaut in an orbiting space station above the earth experiences weightlessness.Reason $(R):$ An object moving around the earth under the influence of earth's gravitational force is in a state of 'free fall'.

Similar Questions

If $\rho$ is the density of the planet,the time period of a nearby satellite is given by

Imagine a light planet revolving around a very massive star in a circular orbit of radius $R$ with a period of revolution $T$. If the gravitational force of attraction between the planet and the star is proportional to $R^{-5/2}$,then ${T^2}$ is proportional to:

The distances of two planets $A$ and $B$ from the sun are $r_A$ and $r_B$ respectively, such that $r_B = 100 r_A$. The ratio of the orbital speed of planet $A$ to that of planet $B$ is (both planets are revolving around the sun in circular orbits).

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If the mass of a satellite is doubled and the time period remains constant,the ratio of the orbital radii in the two cases will be:

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Assertion $(A):$ An astronaut in an orbiting space station above the earth experiences weightlessness.
Reason $(R):$ An object moving around the earth under the influence of earth's gravitational force is in a state of 'free fall'.

The orbit of a geo-stationary satellite is circular. The time period of the satellite depends on:
$(i)$ mass of the satellite
(ii) mass of the earth
(iii) radius of the orbit
(iv) height of the satellite from the surface of the earth
Which of the following is correct?