Distinguish between g and G
g
1} Is acceleration due to gravity
2} It s value varies from place to place
. On earth g = 9.8 ms-2
. On moon g = 1.63 ms-2
3} vector quantity
4} unit is ms-2
G
1} Is universal gravitational constant
2} Its value never changes
3} Dimensional quantity
4} unit is Nm2kg-2
1} Is acceleration due to gravity
2} It s value varies from place to place
. On earth g = 9.8 ms-2
. On moon g = 1.63 ms-2
3} vector quantity
4} unit is ms-2
G
1} Is universal gravitational constant
2} Its value never changes
3} Dimensional quantity
4} unit is Nm2kg-2