Question

The resultant of two forces P and Q

makes an angle of 300 with P What is

the angle between P and Q, if the

magnitudes of the resultant is equal to Q
$\sqrt{3}$






1) 300 2) 450

3) 600 4) 750​

Answer 1

Answer:

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Answer 2

Explanation:

R=P=[P

2

+Q

2

+2PQcosθ]

1/2

Q

2

+2PQcosθ=0

Q+2Pcosθ=0......{1}

let the angle between resultant of 2P and Q be α

tanα=

Q+2Pcosθ

2Psinθ

from equation 1

tanα=∞→α=90