At the surface of a certain planet, acceleration due to gravity is one-quarter of that on earth. If a brass ball is transported to this planet, then which one of the following statements is not correct
The mass of the brass ball on this planet is a quarter of its mass as measured on earth
The weight of the brass ball on this planet is a quarter of the weight as measured on earth
The brass ball has the same mass on the other planet as on earth
The brass ball has the same volume on the other planet as on earth
Radius of earth is around $6000\, km$. The weight of body at height of $6000 \,km$ from earth surface becomes
In order to find time, the astronaut orbiting in an earth satellite should use
Give the value of acceleration due to gravity at height $12\, km$ from the surface of earth.
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
If the radius of the earth shrinks by $1.5\%$ (mass remaining same), then the value of acceleration due to gravity changes by ....... $\%$.