-- "constant velocity" ===> acceleration is 0 .
-- acceleration=0 ===> forces are balanced
-- balanced forces ===> (friction) + (force you exert) = 0
(friction) = -(force you exert)
They have equal magnitude and opposite direction.
Matter can be many things, but is mostly made of atoms. Atoms are small things that cannot be seen directly, as lights either passes through it or alters it. However, we know that atoms are made of 3 parts, those being the proton, neutron, and electron.
Protons have a positive electromagnetic charge.
Neutrons have no charge.
Electrons have a negative charge equal to the protons positive charge.
Protons and neutrons make up what's called the nucleus, which is orbited by the electrons.
Protons and neutrons also share another thing in common, that being their composition.
Until relatively recently, we thought that these were the smallest particles in the universe, and indestructible. However, modern discoveries have revealed that they are actually made of quarks and gluons.
These are actually indestructible, being part of the group that is elementary particles.
The kinematic formula I would use is v(f)=v(i)+at so plugging in the values you'd get 5.5=14+a*6
So a= -1.42, the answer is negative because the car is slowing down.
