Question

two boys raising a load pull at an angle to each other. if they exert force of 30N and 60N respectively and their effective is at right angle to the direction of pull of first boy. what is the angle between their arms? what is the effect put.

Answer 1

Answer:

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Answer 2

$\huge\tt\red{A}\tt\pink{N}\tt\blue{S}\tt\green{W}\tt\purple{E}\tt\orange{R}$

Step-by-step explanation:

➳Here A= 30N , B=60N , C=90^°

Let D be the angle between 2 forces. Then tan C =BsinD/A+B cosD

or tan 90^°=60sinD/30+60cosD

or 30+60cosD =0

or cosD=-30/60 =-1/2 =cos120^°

or D=120^°

Effective pulling force is

R= root A^2+B^2+2ABcosD

=root 900+3600+2×30×60 (-1/2)

=30root3N

Hope it's helpful↑(◍•ᴗ•◍)❤࿐