A spring balance is graduated on sea level. If a body is weighed with this balance at consecutively increasing heights from earth's surface, the weight indicated by the balance
Will go on increasing continuously
Will go on decreasing continuously
Will remain same
Will first increase and then decrease
A body weight $500 \,N$ on the surface of the earth. How much would it weigh half way below the surface of the earth ....... $N$
If a man at the equator would weigh $(3/5)^{th}$ of his weight, the angular speed of the earth is
At ..... $km$ height from the surface of earth the gravitation potential and the value of $g$ are $-5.4 \times 10^7\, J kg^{-1}$ and $6.0\,m s^{-2}$ respectively . Take the radius of earth as $6400\, km$.
The acceleration due to gravity is found upto an accuracy of $4 \,\%$ on a planet. The energy supplied to a simple pendulum to known mass ' ${m}$ ' to undertake oscillations of time period $T$ is being estimated. If time period is measured to an accuracy of $3\, \%$, the accuracy to which ${E}$ is known as $..........\,\%$
The ratio of inertial mass and gravitational mass has been found to be $1$ for all material bodies. Were this ratio different for different bodies, the two bodies having same gravitational mass but different inertial mass would have?