Gravitation
As we go farther away from the Earth, the gravitational force becomes
constant
stronger
weaker
positive
weaker
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The weight of an object if the value of g on moon is 1.6 ms-2ย having mass equals 100 kg isA. 100 N
B. 160 N
C. 1000 N
D. 1600 N
With the gain of altitude, the value of g
A. increases
B. remains same
C. decreases
D. all of above
To move around the Earth, a satellite requires
A. centrifugal force
B. centripetal force
C. dynamic force
D. translatory force
With mass โmโ, altitude โhโ, radius roย and velocity vo, the centripetal force is equal to
A. Fcย =( mvoยฒ)โro
B. Fcย =( mvo)โro
C. Fcย =( mroยฒ)โvo
D. Fcย =( mvoยฒ + ro)
The force due to which everybody of the universe attracts every other body
A. force of gravitation
B. force of limiting friction
C. force of inertia
D. force of mechanics
A satellite revolving very close to earth has a speed nearly
A. 7 ms-1
B. 8 ms-1
C. 9 ms-1
D. 10 ms-1
The gravitational field is directed
A. towards the earth
B. away from earth
C. has no direction
D. in a specific direction making angle with earth
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