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julio
Answers (2)
eer
data: V= 145 km/h x 1000 m/1 km x 1 h/3600 s = 40.28 m/s M=243 kg U=0.30 (coefficient of friction from the book) solution: a) Weight= m.g (gravity); W=243 kg x 9.80 m/s2 W=2381.4 N Fnet-W=0 ; Fnet=W (friction) Fr= u.Fnet Fr=0.30 x 2381.4 N Fr=714.4 N b)
