Question

6. In the given Fig. 1.27, a uniform half metre scale PQ is balanced horizontally across a knife edge.
Calculate:
15 cm
C
P
50 cm
40gm
Fig. 1.27
(a) mass of the scale
(b) force on the knife edge
(c) the direction in which the force on the knife edge acts.
Ans (a) 60gm (b) 100gm-f(c) Downward direction
129​

Answer 1

Answer:

is liye bolte h ki padh lo