On Earth,how much force is needed to lift an object of mass $100 \,g$ (in $,N$)?

It is found that the weight of an object is more at the poles than at the equator. So it is beneficial to purchase goods at the equator and sell them at the poles,provided:

What is the effect on the weight of a body due to the revolution of the earth?

$A$ car is accelerated on a levelled road and attains a velocity $4$ times of its initial velocity. In this process,the potential energy of the car

Define $1\, kg$ weight and express it in newton.

At some place on the equator,a bag of sugar weighs $W \ kg$. Will it weigh the same,more,or less when taken to Antarctica? Give a reason for your answer.