Question

can u give this ans fast​

Answer 1

hey mate

here is your answer

let the vectors be A and B where magnitudes are 12 units and 16 units respectively.

let the magnitude of resultant vector(R) be 20 units.

so,

R=√(A²+B²+2AB cos @)

where @ is angle between them

20²=12²+16²+2*12*16* cos @

400=144+256+ 384* cos @

400-400=384* cos @

0=cos @

cos @=0

thus,

@=90° or 270°