Question

Three forces ?, = (3 î+29-K) N, , = (3 î + 4ſ – 5 k)
N and ? = A (i +- k) N act simultaneously on a
particle. In order that the particle remains in equilibrium.
the value of Ashould be
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Answer 1

Answer:

They all are in equilibrium so, net force =0

Ai + 3i + 3i = 0

6+A=0

A=-6

so, a = -6

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