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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

A

4N

B

5N

C

3N

D

2N

Text Solution

Verified by Experts

The correct Answer is:
D
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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