Question

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Answer 1

heya friend!!

here is your answer in the attachment...

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hope it helps you!!

Answer 2

HEllO friend ,
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Let P = 5 kg weight = 5 g Newtons
Q = 10 g Newtons

Using the parallelogram law of addition of vectors :
Resultant force magnitude = R
   R² = P² + Q² + 2 P Q Cos Ф = 5² + 10² + 2 * 5 * 10 * Cos 120
       = 125 - 50 = 75
R = 5√3 newtons

Angle made by R with Q = 10 kg weight = α 
         tan α = P Sin Ф / ( P + Q Cos Ф)
                 = 5 Sin 120 / (10 + 5 Cos 120) = 2.5 √3 / 7.5 = 1/√3
            α = 30°

Hope it helps you