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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