Question -
Answer -
According to the universal law ofgravitation, gravitational force exerted on an object of mass┬аm┬аisgiven by:
Where,
Mass of Earth,┬аM┬а= 6 ├Ч 1024┬аkg
Mass of object,┬аm┬а= 1 kg
Universal gravitational constant, G = 6.7 ├Ч10тИТ11┬аNm2┬аkgтИТ2
Since the object is on the surface of theEarth,┬аr┬а= radius of the Earth (R)
r┬а=┬аR┬а= 6.4 ├Ч 106┬аm
Gravitationalforce,┬а
