Maths-
If the unit vectors and
are inclined at an angle
such that
, then
lies in the interval
Maths-General
Answer:The correct answer is: 
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A mass of 6 kg is suspended by a rope of lengih 2 m form the ceiling . A force of 50 N in the horizonlal direction is applied at the mid Point P of the rope as shown in figure. what is the angle the rope makes. with the vertical in equilibrium ?
Neglect mass of the rope:

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A block of mass
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A geostationary satellite is orbiting the earth at a height of 5R above that of surface of the earth. R being the radius of the earth. The time period of another satellite in hours at a height of 2R from the surface of earth is hr.
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physicsGeneral