Unformatted text preview: φ is 20.0°. a) What is the tension in the cable? The ball is in static equilibrium. Hence the net torque acting on the ball is zero. We choose our rotational axis at the contact point between the ball and slope. The balance of torques equation yields -Tcos φ R + Mgsin θ R = 0 ⇒ T = Mgsin /cos = 369 N b) What is the normal force on the sphere from the slope? Since the ball is in equilibrium, the net force exerted on the ball is zero. The balance of forces equation in the horizontal direction leads to Tcos(-) – Nsin = 0 ⇒N=Tcos(θ-φ)/ sin = 473 N...
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- Spring '08
- Force, Tomoyuki Nakayama, final algebraic expressions, Discussion Section 1243H