Question

Three forces P = 50 N (East), Q=100 N
(North) and S =75 N South are acting
on a particle. Their resultant is
O A) 70.9N
O B) 66.9N
O C) 55.9N
OD) None of the above​

Answer 1

Answer:

a

Step-by-step explanation:

A is the right answer this question

Answer 2

Given,

Force at P=50N(East),

At Q=100N(North),

At S=75N(South)

To Find,

The resultant of three forces.

Solution,

In the east direction we have the force of 50N.

South and north are in opposite and having force of 100N and 75N.

So, displacement of the force in these two direction=100-75=25N

Now we can find out the resultant of remaining forces,

Resultant=√(50)²+(25)²

                  =√2500+625

                 =√3125

                 =55.9N

Hence, their resultant is 55.9N(Option C).