Saiesh
from
Sindhi high school, Bangalore
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 4:
Edit Post
Advika Narkar
from
The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
D D D
Ans 5:
Edit Post
Kriti Bhonsale
from
Delhi Public School, Bengaluru
Class : Class 5
can someone explaini do not understand how the pressure from up or down matters?