ch05-p020 - 20. We take rightwards as the +x direction....

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20. We take rightwards as the + x direction. Thus, 1 ˆ (20 N)i F = G . In each case, we use Newton’s second law G G G FFm a 12 += where m = 2.0 kg. (a) If 2 ˆ (1 0 m / s) i a =+ G , then the equation above gives G F 2 0 = . (b) If , 2 ˆ (2 0m / s) i , a =+ G then that equation gives 2
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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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