Vector a has a magnitude of 30 units. vector b is perpendicular to vector aand has a magnitude of 40 units. what would the magnitude of the resultant vector a + b be?

Explanation:

As we know that magnitude of two vectors is given as

here we know that

A = magnitude of vector A

B = magnitude of vector B

= angle between two vectors

so here we know that

A = 30 units

B = 40 units

angle = 90 degree

so we have

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