(b) A rigid bar as shown in Figure Q2 (b) is applied a 1.5 kN load at A and pinned at F. It is supported by two brass rods (E = 105 GPa) which having a diameter
of 15 mm each. Knowing that the bar is initially horizontal, determine the
displacement of the end A.
(10 marks)
DO
EO
1.5 kN
250 mm
B
А(о
C С
600 mm
100 mm
125 mm
Figure Q2 (b)

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it

the doppler effect is used by weather forecasters to measure 

moving clouds