Subject :NSO Class : Class 4
Select the setup in which the plank will not move at all but may break. Let the fulcrum not be fixed permanently on the plank.
A 
B 
C 
D 
Ans 1: (Master Answer)
Class : Class 1
Ans 2:
Class : Class 4
D
Ans 3:
Class : Class 4
Ans 4:
Class : Class 4
D
Ans 5:
Class : Class 5
can someone explaini do not understand how the pressure from up or down matters?
Ans 6:
Class : Class 7
D D D