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1–1. Represent each of the following quantities with combinations of units in the correct SI form, using an appropriate prefix: (a) km ms, (b) µkN, (c) mg ms 2, (d) µ N ⋅ km.
SOLUTION a)
(103 ) m = 106 m > s = Mm > s km = ( ) ms (10−3 ) s
Ans.
b) µ kN = ( 10−6 )( 103 ) N = ( 10−3 ) N = mN
Ans.
(10−3 ) g = (103 ) g = kg > s2 mg = c) 2 ms2 s2 ( 10−3 ) s d) µ N ⋅ km = ( 10−6 ) N ( 103 ) m = ( 10−3 ) N ⋅ m = mN ⋅ m
Ans. Ans.
Ans: km a) = Mm > s ms b) µ kN = mN mg = kg > s2 c) ms2 d) µ N ⋅ km = mN ⋅ m 1
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