Question

The displacement-time graph of a body acted upon by some forces is shown in the figure. For this situation match the entries of column I with the entries of column II.

Column I	Column II
(A) For OA, the total work done by all (p) always positive forces together	(p) always positive
(B) For OA, the work done by few of the (q) always negative acting forces	(q) always negative
(C) For AB, the work done by few of the (r) can be positive acting forces	(r) can be positive
(D) For BC, the work done by few of the (s) can be zero acting forces.	(s) can be zero
	(t) can be negative

Answer 1

(A) – p ;

(B) – r, s, t ;

(C) – r, s, t ;

(D) – r, s, t