Consider the following arrangement with a frictionless/massless pulley. Determine the force F required to move block A if the co
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Answer:
A) v = 1.885 m/s
B) v = 0.39 m/s
C) E = 0.03 J
D)
Explanation:
Part A
We will use the conservation of energy to find the speed at equilibrium.
where and
Therefore,
Part B
The conservation of energy will be used again.
where
Therefore, v = 0.39 m/s.
Part C
Total energy of the system is equal to the potential energy at amplitude.
Part D
The general equation of motion in simple harmonic motion is
where is the phase angle to be determined by the initial conditions. In this case, the initial condition is that at t = 0, x is maximum. Therefore,