Two vectors →a and →b are such that |→a|=8 units, angle between both vectors is 60∘. Then the projection(in units) of →a along →b is equal to
If →a,→b and →c are three vectors of equal magnitude. The angle between each pair of vectors is π3 such that ∣∣∣→a+→b+→c∣∣∣=√6. Then |→a| is equal to