A Jong plank XY lies on the ground. A load of 120N is placed on it, at a distance of O.50m from (MIJ2016P22EXTIG.S) 7. end X, as shown. End v is lifted off the ground. The upward force needed to do this is 65N. load 65N 0.50 m 1.5m 2.0m ground 120N 120105+ WA 2-0= In the diagram, Wis the weight of the plank, acting at its mid-point. What is the value of W? A 35N B 47N 100N 133N
A Jong plank XY lies on the ground. A load of 120N is placed on it, at a distance of O.50m from (MIJ2016P22EXTIG.S) 7. end X, as shown. End v is lifted off the ground. The upward force needed to do this is 65N. load 65N 0.50 m 1.5m 2.0m ground 120N 120105+ WA 2-0= In the diagram, Wis the weight of the plank, acting at its mid-point. What is the value of W? A 35N B 47N 100N 133N
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Chapter1: Units, Trigonometry. And Vectors
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Solve only question 7
Transcribed Image Text:The diagram shows a non-uniform beam of weight 120N, pivoted at one end. The beam is kept in
d to
Topic 1.5.2 - Turning Effect
IGCSE Physics Topical MCas
equilibrium by force F.
20 cm
60 cm
Fx2012
pivot
80
centre of
mass of beam
2ON
weight
120N
What is the value of force F?
A 30N
- 30
B
40N
360N
D 480N
(MIJI2016/P22EXTIQ.6)
A Jong plank XY lies on the ground. A load of 120 N is placed on it, at a distance of 0.50m from
end X, as shown.
End v is lifted off the ground. The upward force needed to do this is 65 N.
12/04
load
65 N
Ask
In the diagram, W is the weight of the plank, acting at its mid-point.
0.50 m
1.5m
2.0m
ground
120N
120105+ WX 2-0 = 65
W
What is the value of W?
A
35N
47N
100N
D
133N
(MIJI2016/P23/EXTIQ.5)
The diagram shows a uniform bridge, 4.0 m long and weighing 10 000 N.
The bridge is pivoted at one end. A force at the other end gradually increases until the bridge
begins to lift.
lifting
force
bridge
pivot-
4.0m
What is the lifting force as the bridge starts to move upwards?
5000 N
10 000 N
D 20000 N
B
A 2500 N
(M/J/2017/P21/EXTIQ.8)
10000X 4=F X 2
83
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