NEET Test Series from KOTA - 10 Papers In MS WORD
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Gravitation
138372
Two masses and are released from rest from a finite distance. They start under their mutual gravitational attraction-
1 Acceleration of is more than that of .
2 Acceleration of is more than that of .
3 Centre of mass of system will remain at rest in all the reference frame
4 Total energy of system does not remain constant.
Explanation:
A Given, We know that So, , In absence of external force (remember mutual gravitational force is an internal force for the system) total energy remains constant. Thus the acceleration of is more than that of .
AIIMS-2012
Gravitation
138373
If the density of a small planet is the same as that of earth, while the radius of the planet is 0.2 times that the earth, the gravitational acceleration on the surface on that planet is
1
2
3
4
Explanation:
A The acceleration due to gravity which arises in the body due to gravitational force of attraction is given by We know, Mass of earth Volume Density From equation (i) and (ii), Given,
UPSEE 2004
Gravitation
138374
A fighter plane, flying horizontally with a speed at an altitude of drops a bomb for a target straight ahead of it on the ground. The bomb should be dropped at what approximate distance ahead of the target? Assume that acceleration due to gravity (g) is . Also neglect air drag.
1
2
3
4
Explanation:
A Given, From second equation of motion Distance Speed Time
WB JEE 2020
Gravitation
138375
Two point objects of masses and respectively are at a distance of apart, the centre of gravity is at a distance from the object of mass where is
138372
Two masses and are released from rest from a finite distance. They start under their mutual gravitational attraction-
1 Acceleration of is more than that of .
2 Acceleration of is more than that of .
3 Centre of mass of system will remain at rest in all the reference frame
4 Total energy of system does not remain constant.
Explanation:
A Given, We know that So, , In absence of external force (remember mutual gravitational force is an internal force for the system) total energy remains constant. Thus the acceleration of is more than that of .
AIIMS-2012
Gravitation
138373
If the density of a small planet is the same as that of earth, while the radius of the planet is 0.2 times that the earth, the gravitational acceleration on the surface on that planet is
1
2
3
4
Explanation:
A The acceleration due to gravity which arises in the body due to gravitational force of attraction is given by We know, Mass of earth Volume Density From equation (i) and (ii), Given,
UPSEE 2004
Gravitation
138374
A fighter plane, flying horizontally with a speed at an altitude of drops a bomb for a target straight ahead of it on the ground. The bomb should be dropped at what approximate distance ahead of the target? Assume that acceleration due to gravity (g) is . Also neglect air drag.
1
2
3
4
Explanation:
A Given, From second equation of motion Distance Speed Time
WB JEE 2020
Gravitation
138375
Two point objects of masses and respectively are at a distance of apart, the centre of gravity is at a distance from the object of mass where is
138372
Two masses and are released from rest from a finite distance. They start under their mutual gravitational attraction-
1 Acceleration of is more than that of .
2 Acceleration of is more than that of .
3 Centre of mass of system will remain at rest in all the reference frame
4 Total energy of system does not remain constant.
Explanation:
A Given, We know that So, , In absence of external force (remember mutual gravitational force is an internal force for the system) total energy remains constant. Thus the acceleration of is more than that of .
AIIMS-2012
Gravitation
138373
If the density of a small planet is the same as that of earth, while the radius of the planet is 0.2 times that the earth, the gravitational acceleration on the surface on that planet is
1
2
3
4
Explanation:
A The acceleration due to gravity which arises in the body due to gravitational force of attraction is given by We know, Mass of earth Volume Density From equation (i) and (ii), Given,
UPSEE 2004
Gravitation
138374
A fighter plane, flying horizontally with a speed at an altitude of drops a bomb for a target straight ahead of it on the ground. The bomb should be dropped at what approximate distance ahead of the target? Assume that acceleration due to gravity (g) is . Also neglect air drag.
1
2
3
4
Explanation:
A Given, From second equation of motion Distance Speed Time
WB JEE 2020
Gravitation
138375
Two point objects of masses and respectively are at a distance of apart, the centre of gravity is at a distance from the object of mass where is
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
Gravitation
138372
Two masses and are released from rest from a finite distance. They start under their mutual gravitational attraction-
1 Acceleration of is more than that of .
2 Acceleration of is more than that of .
3 Centre of mass of system will remain at rest in all the reference frame
4 Total energy of system does not remain constant.
Explanation:
A Given, We know that So, , In absence of external force (remember mutual gravitational force is an internal force for the system) total energy remains constant. Thus the acceleration of is more than that of .
AIIMS-2012
Gravitation
138373
If the density of a small planet is the same as that of earth, while the radius of the planet is 0.2 times that the earth, the gravitational acceleration on the surface on that planet is
1
2
3
4
Explanation:
A The acceleration due to gravity which arises in the body due to gravitational force of attraction is given by We know, Mass of earth Volume Density From equation (i) and (ii), Given,
UPSEE 2004
Gravitation
138374
A fighter plane, flying horizontally with a speed at an altitude of drops a bomb for a target straight ahead of it on the ground. The bomb should be dropped at what approximate distance ahead of the target? Assume that acceleration due to gravity (g) is . Also neglect air drag.
1
2
3
4
Explanation:
A Given, From second equation of motion Distance Speed Time
WB JEE 2020
Gravitation
138375
Two point objects of masses and respectively are at a distance of apart, the centre of gravity is at a distance from the object of mass where is