F*time=m*deltaV=m(Vf-Vi)
Vf=force * time/mass + Vi
Vf=(4.5i+3.5j) *time/mass + 4.5i+3.5j
so do the math, gather like terms in i,j
A particle of mass 2 kg has an initial velocity of (4.5i + 3.5j) m/s.
It is acted on by a force (5i -2j) N for 2 s.
What is its final velocity?
1 answer