Question

if two vectors having equal magnitude acting at
right angles to each other,
what is the magnitude of their resultant? ​

Answer 1

Answer:

R=A√2=B√2

Explanation:

since by triangle law

resultant R is √A²+B²+2ABcosx

let A and B be two vectors of equal magnitude and x be the angle between them(90°)

so R=√A²+B²+2ABcos90

R=√A²+B²+2AB(0)

R=√A²+B²

R=√2A² (since A=B)

R=A√2=B√2

Answer 2

Answer:

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