Image: http://www.webassign.net/tipler/07-19alt.gif
The system shown below has frictionless pulleys and the strings have negligible mass. The system is initially at rest when the lower string is cut. For y = 4.0 m, what is the speed of the objects when they are at the same height?
____ m/s?
The system shown below has frictionless pulleys and the strings have negligible mass. The system is initially at rest when the lower string is cut. For y = 4.0 m, what is the speed of the objects when they are at the same height?
____ m/s?
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a = g*[1 - 2/(1+M/m)] = 9.8*[1 - 2/(1+3/2)] = 1.96 m/s²
Each mass travels 2 m. The velocity over that distance is
V = √[2ay] = √[2*1.96*2] = 2.8 m/s
Each mass travels 2 m. The velocity over that distance is
V = √[2ay] = √[2*1.96*2] = 2.8 m/s
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It's logical