A force of 5 units acts on a particle in the direction to the east and another force of 4 units acts on the particle in the direction north-east. The resultants of the two forces is

a

\(\sqrt{3}\) units

b

3 units

c

\(\sqrt{41 + 20 \sqrt{2}}\) units

d

\(\sqrt{41 - 20 \sqrt{2}}\) units

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Explanation

Correct Option
c

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Discussions (7)

clergy4rel
2 years ago
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the solving

samh
3 years ago

please admin can you drop a better understanding of this?

clergy4rel
2 years ago

use cosine rule R² = 5² + 4² -2(5)(4(cos(180-135) = 41 + 20√2

labitol1
4 years ago

admin how will 52+42 guve us 41
pls review ....
and drop a better explanation 😉

Eunora
1 year ago

maths processing error

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