# Question #40a2f

##### 1 Answer

Mar 24, 2017

(a)

Since the magnitude of resultant is equal to the sum of magnitudes of two displacements.

(b)

Since the magnitude of resultant is equal to the difference of magnitudes of two displacements. (assuming

(b)

Since the square of magnitude of resultant is equal to sum of squares of magnitudes of two displacements. This is true only in case of a right triangle.