T1a8s.pdf - Assignment 8 solutions(Fall term Physics 102 8.8 If the mass of a hydrogen atom is 1.00 u(i.e 1 unit then the mass of the oxygen atom is

T1a8s.pdf - Assignment 8 solutions(Fall term Physics 102...

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Assignment 8 solutions (Fall term Physics 102) i . i . . . .
C H A P T E R 8 Then, from Σ , we have , or = 0 y F + 1 2 700 N-200 N=0 T T 1 2 900 N- 900 N-333 N= T T = = 567 N T 1 700 N 200 N T 2 1.50 m 1.00 m 2.00 m 8.20 (a) See the diagram below: 200 N V H 700 N 80.0 N T 60.0° x 3.00 m 3.00 m (b) If x = 1.00 m, then ) ( )( ) ( )( ) ( )( ) ( ) ( ) 0 700 N 1.00 m 200 N 3.00 m 80.0 N 6.00 m sin 60.0 6.00 m 0, left end T τ Σ = ⇒ − + ° = giving T = 343 N Then, , or 0 cos60.0 0 x F H T Σ = ° = ( ) 343 N cos60.0 H = ° = 171 N and ( ) 0 980 N+ 343 N sin 60.0 0 y F V Σ = ° = , or V = 683 N (c) When the wire is on the verge of breaking, T = 900 N and ) ( ) ( )( ) ( )( ) ( ) ( )

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