359796
Statement A : Astronauts in a satellite moving around the Earth are in a weightlessness condition. Statement B : The satellite and its contents are falling freely at the same rate.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Option (3) is correct
PHXI08:GRAVITATION
359797
Radius of the earth is 6400 \(km\). Body of 5\(kg\) weighs zero at the equator, the angular speed of the earth is \(\left( {g = 10\;m/{{\sec }^2}} \right)\).
1 1/400 \(radian/sec\)
2 1/80 \(radian/sec\)
3 1/800 \(radian/sec\)
4 1/1600 \(radian/sec\)
Explanation:
For the condition of weightlessness at equator \(\begin{aligned}& g=R \omega^{2} \\& \omega=\sqrt{\dfrac{g}{R}} \therefore \omega=\sqrt{\dfrac{1}{640 \times 10^{3}}}=\dfrac{1}{800} \mathrm{rad} / \mathrm{s} .\end{aligned}\)
PHXI08:GRAVITATION
359798
An astronaut experiences weightlessness in a space satellite. It is because
1 The gravitational force is large at that location in space
2 The gravitational forces is inifinitely large at that location in space.
3 The gravitational force is small at that location in space.
4 The astronaut experiences no gravity.
Explanation:
An astronaut experiences weightlessness in a space satellite. It is because the astronaut experiences no gravity.
PHXI08:GRAVITATION
359799
Assertion : A person sitting in an artificial satellite revolving around the earth feels weightless. Reason : There is no gravitational force on the satellite.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
A person feels weight only when a surface exerts a normal reactive force on him. On a satellite, experiencing the same acceleration, one feels weightless despite gravity acting on the satellite. So correct option is (3)
359796
Statement A : Astronauts in a satellite moving around the Earth are in a weightlessness condition. Statement B : The satellite and its contents are falling freely at the same rate.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Option (3) is correct
PHXI08:GRAVITATION
359797
Radius of the earth is 6400 \(km\). Body of 5\(kg\) weighs zero at the equator, the angular speed of the earth is \(\left( {g = 10\;m/{{\sec }^2}} \right)\).
1 1/400 \(radian/sec\)
2 1/80 \(radian/sec\)
3 1/800 \(radian/sec\)
4 1/1600 \(radian/sec\)
Explanation:
For the condition of weightlessness at equator \(\begin{aligned}& g=R \omega^{2} \\& \omega=\sqrt{\dfrac{g}{R}} \therefore \omega=\sqrt{\dfrac{1}{640 \times 10^{3}}}=\dfrac{1}{800} \mathrm{rad} / \mathrm{s} .\end{aligned}\)
PHXI08:GRAVITATION
359798
An astronaut experiences weightlessness in a space satellite. It is because
1 The gravitational force is large at that location in space
2 The gravitational forces is inifinitely large at that location in space.
3 The gravitational force is small at that location in space.
4 The astronaut experiences no gravity.
Explanation:
An astronaut experiences weightlessness in a space satellite. It is because the astronaut experiences no gravity.
PHXI08:GRAVITATION
359799
Assertion : A person sitting in an artificial satellite revolving around the earth feels weightless. Reason : There is no gravitational force on the satellite.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
A person feels weight only when a surface exerts a normal reactive force on him. On a satellite, experiencing the same acceleration, one feels weightless despite gravity acting on the satellite. So correct option is (3)
359796
Statement A : Astronauts in a satellite moving around the Earth are in a weightlessness condition. Statement B : The satellite and its contents are falling freely at the same rate.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Option (3) is correct
PHXI08:GRAVITATION
359797
Radius of the earth is 6400 \(km\). Body of 5\(kg\) weighs zero at the equator, the angular speed of the earth is \(\left( {g = 10\;m/{{\sec }^2}} \right)\).
1 1/400 \(radian/sec\)
2 1/80 \(radian/sec\)
3 1/800 \(radian/sec\)
4 1/1600 \(radian/sec\)
Explanation:
For the condition of weightlessness at equator \(\begin{aligned}& g=R \omega^{2} \\& \omega=\sqrt{\dfrac{g}{R}} \therefore \omega=\sqrt{\dfrac{1}{640 \times 10^{3}}}=\dfrac{1}{800} \mathrm{rad} / \mathrm{s} .\end{aligned}\)
PHXI08:GRAVITATION
359798
An astronaut experiences weightlessness in a space satellite. It is because
1 The gravitational force is large at that location in space
2 The gravitational forces is inifinitely large at that location in space.
3 The gravitational force is small at that location in space.
4 The astronaut experiences no gravity.
Explanation:
An astronaut experiences weightlessness in a space satellite. It is because the astronaut experiences no gravity.
PHXI08:GRAVITATION
359799
Assertion : A person sitting in an artificial satellite revolving around the earth feels weightless. Reason : There is no gravitational force on the satellite.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
A person feels weight only when a surface exerts a normal reactive force on him. On a satellite, experiencing the same acceleration, one feels weightless despite gravity acting on the satellite. So correct option is (3)
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PHXI08:GRAVITATION
359796
Statement A : Astronauts in a satellite moving around the Earth are in a weightlessness condition. Statement B : The satellite and its contents are falling freely at the same rate.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Option (3) is correct
PHXI08:GRAVITATION
359797
Radius of the earth is 6400 \(km\). Body of 5\(kg\) weighs zero at the equator, the angular speed of the earth is \(\left( {g = 10\;m/{{\sec }^2}} \right)\).
1 1/400 \(radian/sec\)
2 1/80 \(radian/sec\)
3 1/800 \(radian/sec\)
4 1/1600 \(radian/sec\)
Explanation:
For the condition of weightlessness at equator \(\begin{aligned}& g=R \omega^{2} \\& \omega=\sqrt{\dfrac{g}{R}} \therefore \omega=\sqrt{\dfrac{1}{640 \times 10^{3}}}=\dfrac{1}{800} \mathrm{rad} / \mathrm{s} .\end{aligned}\)
PHXI08:GRAVITATION
359798
An astronaut experiences weightlessness in a space satellite. It is because
1 The gravitational force is large at that location in space
2 The gravitational forces is inifinitely large at that location in space.
3 The gravitational force is small at that location in space.
4 The astronaut experiences no gravity.
Explanation:
An astronaut experiences weightlessness in a space satellite. It is because the astronaut experiences no gravity.
PHXI08:GRAVITATION
359799
Assertion : A person sitting in an artificial satellite revolving around the earth feels weightless. Reason : There is no gravitational force on the satellite.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
A person feels weight only when a surface exerts a normal reactive force on him. On a satellite, experiencing the same acceleration, one feels weightless despite gravity acting on the satellite. So correct option is (3)
