1.

If Maximum and minimum values of the resultant of two forces acting at a point are 7N and 3N respectively, the smaller force is equal to

Answer»

4N
5N
3N
2N

Solution :F max. =P+Q=7N .......(1)
F min. =P-Q=3N ..........(2)
From (1) & (2)
`P +cancel(Q)=7""P+Q`
`P-cancel(Q)=3""5+Q`
2P=10
P=5N, Q=2N


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