SLO 9th 10th

I think gram is the basic unit of mass instead of kg.because kilo is a prefax.

2N force applied on a body means............

A body completed one rotation. Find its displacement and distance covered.

I traveled on the bus.
I traveled in the car.
Logic?

The antonym of beneath is ?

Nucleus of an atom is composed of protons and neutrons. Each proton has positive charge.Why they don't repel each other?

A person completes one rotation. Calculate his distance and displacement

Name the branch of physics which deals with motion of objects only .