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An object weights 72 N on earth. Its weight at a height of R/2 from earth is

(a) 32 N (b) 56 N

(c) 72 N (d) Zero

Answer: a

(6)

5/5 - (1 vote)

PrevPreviousThe height of the point vertically above the earth’s surface, at which acceleration due to gravity becomes 1% of its value at the surface is (Radius of the earth = R)

Next62. One quarter sector is cut from a uniform circular disc of radius R. This sector has mass M. It is made to rotate about a line perpendicular to its plane and passing through the centre of the original disc. Its moment of inertia about the axis of rotation isNext

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