tangurar components. 3.23 and 3.24 The four forces are in equilibrium. Deter- mine F4 and 03 (a) graphicaliy from the force polygon, and (b) by the method of rectangular components. Compoets COMDO F, = 700 lb F4 65° 45° /35° = 500 lb %3D F = 750 lb %3D PROB. 3.24

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A: A→ = 3i^ + 4j^ - 3k^B→ = -4i^ + 3j^ + 2k^C→ = 6i^ - 7j^3.C→ = 3.(6i^ - 7j^)= 18i^ - 21j^

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!