Question

get unit of following physical quantity from dimension formula....1 momentum .2.impulse.3. kinetic energy.4 gravity.5 Acceleration

Answer 1

dimensional formula of momentum =MLT^-1=impulse

unit of momentum and impulse is kg m s^-1

and value of kinetic energy=1/2 mv^2
and it's dimensional forumla is =ML^2 T^-2
which is also a dimensional formula of work.
and the unit of kinetic energy SI unit-joule
CGS unit is erg.

and as per dimensional formula the unit of kinetic energy is = Kg m^2 s^-2

and the gravity g=G M/R^2
and dimensional formula of gravity is g=ML^-2
and
unit of gravity g=ms^-2
and that of universal gravitational constant is G=m^3 kg^-1 s^-2

. dimensional formula of acceleration =V/T
= LT^-1. /T
= LT^-2

and unit of acceleration as per dimensional formula is = m s^-2.

hope it helped !!
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