Question

Asked Dec 17, 2019

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Two blocks each of mass m are fastened

to the top of an elevator as in Figure

P4.56. The elevator has an upward

acceleration a. The strings have negligible

mass. (a) Find the tensions T_{1}

and T_{2} in the upper and lower strings in

terms of m, a, and g. (b) Compare the two tensions and determine which string would break first if

a is made sufficiently large. (c) What are the tensions if the

cable supporting the elevator breaks?

Step 1

a)

The free body diagram is given,

From the diagram,

Step 2

The tension on the upper string

Step 3

The tension on the ...

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