A body weights $49\,N$ on a spring balance at the north pole. ..... $N$ will be its weight recorded on the same weighing machine, if it is shifted to the equator?
(Use $g=\frac{G M}{R^{2}}=9.8 \,ms ^{-2}$ and radius of earth, $R =6400\, km .]$
$49$
$48.83$
$49.83$
$49.17$
A body welghs $200 \;\mathrm{N}$ on the surface of the earth. ......$N$ will it weigh half way down to the centre of the earth?
If a man at the equator would weigh $(3/5)^{th}$ of his weight, the angular speed of the earth is
If radius of the earth contracts $2\%$ and its mass remains the same, then weight of the body at the earth surface
An iron ball and a wooden ball of the same radius are released from a height $‘h’$ in vacuum. The time taken by both of them to reach the ground is
Mass of moon is $7.34 \times {10^{22}}\,kg$. If the acceleration due to gravity on the moon is $1.4\,m/{s^2}$, the radius of the moon is $(G = 6.667 \times {10^{ - 11}}\,N{m^2}/k{g^2})$