Question

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Answer 1

Answer:

RESULTANT is 17.32N

at 18.43° north of east

and

Balancing force is 17.32 N

at south of west

ie below x axis left of Y axis

Explanation:

components of 10N force are

10*cos30 on Y axis

=8.66N

and

-10*sin30 on X axis

= -5N

similarly

compo of 20N force are

0 on Y axis

and

20 on X axis

Now resultant Y component is

8.66+0=8.66

and resultant X compo is

20-5=15

So resultant is

√(15^2+8.66^2)

=√(225+75)

=√300

=17.32N

Direction of this force is

tan inv 75/225

=tan inv 0.33

=18.43° North of East

or upward of X axis

and right of Y axis...ANS (1)

Secondly

balancing force

is equal and opposite

so it is 17.32 N at 18.43° south of west or downward from left side of X axis....ANS (2)

Answer 2

RESULTANT is 17.32N

at 18.43 north of east

and

Balancing force is 17.32 N

at south of west

ie belowx axis left of Y axis

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