Question

A mobile at the art museum has a 2.0 kg steel cat and a 4.0 kg steel dog suspended from a lightweight cable, as shown in FIGURE EX7.23.It is found

that 0, = 20° when the center rope is adjusted to be perfectly horizontal. What are the tension and the angle of rope 3? I| The 100 kg block in FIGURE EX7.25 takes 6.0 s to reach thefloor after being released from rest. What is the mass of the blockon the left? The pulley is massless and frictionless.

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