Physics - Annual Examinations For Secondary Schools - Track 3 - Form 3 - 2010 Page 4
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104.
(a)
Underline two vectors from the following Physical quantities.
mass
weight
displacement
distance
pressure
(2)
(b)
The diagram shows a method for lifting water using a rod and a bucket. The weight
of the rod AB is negligible.
4.8 m
B
A
3.0 m
bucket
F
W = 180N
(i)
What is the horizontal distance between the bucket and the pivot?
_______________________________________________________________ (1)
(ii)
What is the direction of rotation of the bucket about the pivot, clockwise or
anticlockwise?
_______________________________________________________________ (1)
(iii) Calculate the size of the moment of the bucket about the pivot. Give the correct
units.
___________________________________________________________________
_______________________________________________________________ (2)
(iv) Calculate the downward force F required to balance the bucket.
___________________________________________________________________
_______________________________________________________________ (2)
Page 4 of 10
Physics – Secondary Schools – Track 3 – Form 3 - 2010
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