Question

three collinear horizontal forces of magnitude 150n, 450n and 300n are acting on a rigid body. determine the resultant of forces when (i) all the forces are acting in the same direction; (ii) the force of 300N act in the same direction​

Answer 1

Answer:

Given :

Three col linear horizontal forces of magnitude 150 N, 450 N and 300 N are acting on a rigid body . '

To Find :

The resultant of forces when all the forces are acting in the same direction .

Solution :

We know , force is a vector quantity .

Also , when vectors are added in same direction the net magnitude is the sum of all vector magnitude .

So , F_{max}=F_1+F_2+F_3F

max

=F

1

+F

2

+F

3

Putting value of F_1 , F_2 \ and\ F_3F

1

,F

2

and F

3

in above equation .

We get :

\begin{gathered}F_{max}=F_1+F_2+F_3\\\\F_{max}=150+450+300\ N\\\\F_{max}=900\ N\end{gathered}

F

max

=F

1

+F

2

+F

3

F

max

=150+450+300 N

F

max

=900 N