Problem 3: Dimension Analysis Show by dimensional analysis that the equations are correct or incorrect. a. mv = -mv +vmgh 2 b. v=v.+at- C. ma= v2Problem 5: Scalar and Vector Quantities If r =2i-j+k , r,=i+3j-2k , r;=-2i+j-3k , and r=3i+2 j+5k , find the scalars a, b, c such that r=ar,+br2+Cr; .Problem 6: Scalar and Vector Quantities Find a unit vector parallel to the resultant of vectors r1: 2 5+4 j 5 k . r2 =i+ 2 j +3 k