Question

If $W$ represents the work done, then match the two columns:

Column I		Column II
A	Force is always along the velocity	1	$W = 0$
B	Force is always perpendicular to velocity	2	$W < 0$
C	Force is always opposite to velocity	3	$W > 0$
D	The object is stationary but the point of application of the force moves on the object	4

• A. $( A ) \rightarrow(1) ;( B ) \rightarrow(2) ; C \rightarrow(3) ;( D ) \rightarrow(2)$
• B. $( A ) \rightarrow(3) ;( B ) \rightarrow(1) ; C \rightarrow(2) ;( D ) \rightarrow(1)$
• C. $( A ) \rightarrow(2) ;( B ) \rightarrow(3) ; C \rightarrow(1) ;( D ) \rightarrow(2)$
• D. $( A ) \rightarrow(1) ;( B ) \rightarrow(2) ; C \rightarrow(3) ;( D ) \rightarrow(1)$

Answer 1

Answer: (B)

$( A ) \rightarrow(2) ;( B ) \rightarrow(3) ; C \rightarrow(1) ;( D ) \rightarrow(2)$