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27 Nov 2019
Two crates of mass m1 = 39 kg and m2 = 14 kg are connected by amassless rope that passes over a massless, frictionless pulley asshown in the figure below. The crates start from rest.
What are the initial kinetic and potential energies of each crate?(Use the following as necessary: h for the distance from the bottomof m2 to the bottom of m1.)
PE1i = J
KE1i = J
PE2i = J
KE2i = J
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? Expressyour answers in terms of h.
What is the speed of the crates after they have moved a distance h= 2.2 m?
?PE1 = J
?PE2 = J
v = m/s
Two crates of mass m1 = 39 kg and m2 = 14 kg are connected by amassless rope that passes over a massless, frictionless pulley asshown in the figure below. The crates start from rest.
What are the initial kinetic and potential energies of each crate?(Use the following as necessary: h for the distance from the bottomof m2 to the bottom of m1.)
PE1i = J
KE1i = J
PE2i = J
KE2i = J
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? Expressyour answers in terms of h.
What is the speed of the crates after they have moved a distance h= 2.2 m?
?PE1 = J
?PE2 = J
v = m/s
