two forces of magnitude 8 N and 15 N respectively Act at a point if magnitude of resultant vector is 17 N then the angle of inclination between them is
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R=√A^2+B^2+ AB Cosx
Use this formula.
Find it yourself
Use this formula.
Find it yourself
Answered by
1
we know that R2=A2+B2+2ABCOS thita
=17*2=8+15+2×8×15COS thita
=289=23+240COS thita
=289-23=240cos thita
=cos thita=-6/263
cos thita =-1/45
=17*2=8+15+2×8×15COS thita
=289=23+240COS thita
=289-23=240cos thita
=cos thita=-6/263
cos thita =-1/45
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