The diagram below shows a light plank balanced on two supports, A and B. Weights of 50 N, 25 N and 30N are placed on the plank as shown. X and Y are the normal reactions to the supports. Y 50 N. 25 N 30 Ν 5 cm 15 cm 15 cm 15 cm 20 cm 20 cm B A The reaction force X is N The reaction force Y is N The turning moment of the 30N weight about support B (in an anticlockwise direction) is Nm.

Physics for Scientists and Engineers: Foundations and Connections
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Chapter10: Systems Of Particles And Conservation Of Momentum
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The diagram below shows a light plank balanced on two supports, A and B. Weights of 50 N, 25 N and 30N are placed on the plank as shown. X and Y are the normal reactions to the supports.

 

The diagram below shows a light plank balanced on two supports, A and B. Weights of 50 N,
25 N and 30N are placed on the plank as shown. X and Y are the normal reactions to the
supports.
X
Y
50 N
25 N
30 Ν
5 cm 15 cm
15 cm
20 cm
20 cm
15 cm
B
A
The reaction force X is
N
The reaction force Y is
N
The turning moment of the 30N weight about support B (in an anticlockwise direction) is
Nm.
Transcribed Image Text:The diagram below shows a light plank balanced on two supports, A and B. Weights of 50 N, 25 N and 30N are placed on the plank as shown. X and Y are the normal reactions to the supports. X Y 50 N 25 N 30 Ν 5 cm 15 cm 15 cm 20 cm 20 cm 15 cm B A The reaction force X is N The reaction force Y is N The turning moment of the 30N weight about support B (in an anticlockwise direction) is Nm.
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