ch03-p044 - 44. The two vectors are written as, in unit of...

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44. The two vectors are written as, in unit of meters, 11 1 2 2 2 ˆˆˆˆ 4.0i+5.0j i j, 3.0i+4.0j i j x yx y dd d d d d == + = −= + GG (a) The vector (cross) product gives 12 1 2 1 2 ˆˆ ˆ ( )k [(4.0)(4.0) (5.0)( 3.0)]k=31 k xy dd d d dd ×= = (b) The scalar (dot) product gives 12 12 (4.0)( 3.0) (5.0)(4.0) 8.0. xx yy dd dd dd ⋅= + = + = (c) 22 2 1221 ( ) 8.0 ( 3.0) (4.0) 33. ddd ddd +⋅ = += + + = GGG G G (d) Note that the magnitude of the
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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