in unit vector notation what is the sum a + b if a = (4.0m)i + (3.0m)k
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In unit-vector notation, what is the sum a+b if a = (4.0m)i + (3.0m)j and b = (-13.0m)i + (7.0m)j? What are the magnitude and direction of a-b?
Dwijendra R.
(a) In unit-vector notation, what is the sum of a = (5.4m)i + (4.0m)j and b = (-1.0m)i + (8.7m)j? (b) What is the magnitude of a + b? (c) What is the direction of a + b relative to the z-axis?
Krishna G.
(a) In unit-vector notation, what is the sum $\vec{a}+\vec{b}$ if $\vec{a}=(4.0 \mathrm{~m}) \hat{\mathrm{i}}+(3.0 \mathrm{~m}) \hat{\mathrm{j}}$ and $\vec{b}=(-13.0 \mathrm{~m}) \hat{\mathrm{i}}+(7.0 \mathrm{~m}) \hat{\mathrm{j}} ? \quad$ What are the (b) magnitude and (c) direction of $\vec{a}+\vec{b}$ ?
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