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Principio do impulso e quantidade demovimento: r r rmv + F∆ t = mv1 236.6 m/s− mv cos401+ Fx∆ t = mv2 °( ) F ( ) ( )− 0.1134 24.4 + 0.015 = 0.1134 36.6 cos40°FxDirecção x := 396.4 Nx24.4 m/s0 + F ∆ t = mv sin 40°y2( ) ( )0 + F 0.015 = 0.1134 36.6 sin 40°FDirecção y :yy= 177.9 Nr r rF = i + j( 396.4) ( 177.9)177.9 N434.5 NF=434.5 N24.2°396.4 N33

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