Question

To move a wooden block 'A' placed on a horizontal surface, a student uses a spring balance and measures the minimum required force as F1. Now he keeps one more block 'B' over it and measures the minimum required force as F2. The relation between F1 and F2 is :
(a) F1 > F2
(b) F2 > F1
(c) F1 = F2
(d) It depends upon which face 'A' is placed on the table.

CBSE Class IX Science VSA (1 Mark)

Answer 1

 The answer is (b) F2 > F1.