Question

derive equation of motion for uniformly accelerated .what will be its speed at the end of 100s?

Answer 1

s=s₀+v₀t+at²/2 whete s₀-initial displacement, v₀-initial velosity, a=const - acceleration
if we derive this equation we'll get
v=v₀+at
So if we need to know the speed when t=100s we substitute t=100 into the last equation and obtain
v=v₀+100a