(1) The two Figures below show situations in which identical masses m are hangin
ID: 1577847 • Letter: #
Question
(1) The two Figures below show situations in which identical masses m are hanging from massless taut strings. In Figure (1), two equal masses m are hanging from a string via a pulley at the two ends. In Figure (2), mass m is hanging from a taut string whose other end is attached to the wall. Let Tibe the tension in string 1, and tension T2 the tension in string 2. Which of the following statements is true? Wall 1kg 1kg Figure 1 Figure 2 (a) TI> T2 (b) T2> T (c) T1=T2 (d) The magnitude of tension in the string in Figure 1 can be either greater or smaller than that in the string in Figure 2 depending upon the actual value of the mass m (for example whether it is 0.5 kg or 1 kg etc.). (e) not enough infomation given (2) Justify your answer in question (1) using the appropriate laws of physics.Explanation / Answer
As the string is massless, therefore tension remain the same throughout the string.
From figure 1, T1 = mg
from figure 2, T2 =2g.
Thus we cannot say, whether the T1 is greater or T2, it depends upon the value of 'm'.
Option D is correct.
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