Statics
m F
2
W W2
, AQA PAPER1
Thinking Question on adding forces
1. The forces acting in a system are represented by the vectors a and b below
The resultant of these two vectors would be shown by the following vector
A. B. C. D.
Scale drawings
2. Add these forces together by using scale drawin
a) 5N b)3N c) SN
60 5N 120 N /60 ON
8) 4N 9 3N
30 90
4N
4N
, AQA PAPER1
Adding vectors using Pythagoras
Thinking questions
3.
TUG A(51 kN)
LINER FORWARD DIRECTION
60
TG B (68 kN)
Two tugs are pulling a large ocean liner out to sea on ropes. Tug A exerts a force o
51 kN at an angle of 30 to the forward direction and tug B exerts a force of 68 kN at
angle of 60.
The resultant force on
the liner due to the tugs
B. 92 kN
is about:
119kN D. 123 kN
A. 85 kN
Due to the tugs puling the liner in the last question (Q 25) the liner will start to move
at an angle to the fonward direction of about
A. 53.10 3. 36.80 C. 23.10 D. Zero degrees
4. Try these
a) b)12N
10N
5N
10N 3N 7N
d) e) 8N )7N
2N
3N 9N
5N