Two crates of mass m₁= 40 kg and m₂= 15 kg are connected by a mass less rope that passes over a mass less, friction less pulley as shown in Figure P6.45. The crates start from rest.

(a) Add a coordinate system to Figure P6.45.?

(b) What are the initial kinetic and potential energies of each crate?(c) If the crate on the left (m₁) moves downward through a distance h, what is the change in the potential energy of m₁ and m₂? Express your answers in terms of h.?

(d) What is the speed of the crates after they have moved a distance h = 2.5 m?

Figure P6.45

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Transcribed Image Text:

m1 N m2