a , b , c are three coplanar vectors. Find the resultant vector. i =5 i -2 j , ~b =-4 i…
Physics · NEET · NTA Exams — BASIC MATHEMATICS AND VECTOR
\(\vec{a}, \vec{b}, \vec{c}\) are three coplanar vectors. Find the resultant vector.
\(\overrightarrow{\mathbf{i}}=5 \hat{i}-2 \hat{j}, \overrightarrow{\mathrm{~b}}=-4 \hat{i}+7 \hat{j}, \overrightarrow{\mathrm{c}}=-2 \hat{j}\)
- \(\sqrt{10}, 72^{\circ}\)
- \(\sqrt{5}, 63^{\circ}\)
- \(\sqrt{10}, 90^{\circ}\)
- \(\sqrt{10}, 30^{\circ}\)
Answer
(C) 10 , 90^
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