Displacement in nth Second (sₙ = u + a(n − ½))

jee-mainjee-advancedneet-ug

sₙ = u + a(n − ½)

What each symbol means

SymbolWhat it stands for
aConstant acceleration (m/s²)
nSecond index (1,2,3,...)
uInitial velocity at t=0 (m/s)
s_nDisplacement during nth second (m)

When to use this

Constant acceleration; nth second means from t=n−1 to t=n.