, Vectors & Scalars
Vectors : a physical quantity that has both magnitude a direction
Eg Force; displacement ; velocity
:
; distance ; speed)
that has only(time
Scalars : a physical quantity magnitude
resultant :
the single vector that has thesame effect as the original vectors
acting together
·
(12g 12 c)
In scalars , negative mags generally don't make sense ;
·
in vectors , they represent direction
Representing Vectors :
will always have
magnitude (straight line)
larger mag-longer line
-
direction shown arrowhead
is
by
-back is sometimes a
-direction can also be represented as the o r ve
Working with Vectors :
·
Vectors a re
=
If
i) some magnitude
2) some direction
a resultant is the Sum of vectors
Eg
:
1) ↓
2) = =
1)
3) &
= 1) ; diff mag
v) < F 1) ; diff direction
5) -ve ofi) ; =
may ; opp direction
"FD diff direction
6)
Adding Vectors in 1 Dimension
3
1 +N + HN
& G
.
HON
tre =
right
&
GNtHN-ION to the right
3
2 + 6N
↳
.
the
-In right
R = +N
6N-2M un to the =
right
Vectors : a physical quantity that has both magnitude a direction
Eg Force; displacement ; velocity
:
; distance ; speed)
that has only(time
Scalars : a physical quantity magnitude
resultant :
the single vector that has thesame effect as the original vectors
acting together
·
(12g 12 c)
In scalars , negative mags generally don't make sense ;
·
in vectors , they represent direction
Representing Vectors :
will always have
magnitude (straight line)
larger mag-longer line
-
direction shown arrowhead
is
by
-back is sometimes a
-direction can also be represented as the o r ve
Working with Vectors :
·
Vectors a re
=
If
i) some magnitude
2) some direction
a resultant is the Sum of vectors
Eg
:
1) ↓
2) = =
1)
3) &
= 1) ; diff mag
v) < F 1) ; diff direction
5) -ve ofi) ; =
may ; opp direction
"FD diff direction
6)
Adding Vectors in 1 Dimension
3
1 +N + HN
& G
.
HON
tre =
right
&
GNtHN-ION to the right
3
2 + 6N
↳
.
the
-In right
R = +N
6N-2M un to the =
right
