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31. The masses M1, M2 and M3 of the three bodies shown in figure are 5, 2 and 3 kg respectively. Calculate the value of T1, T2 andT3. When (1) Whole system is going upward with an accelerationof 2ms ? & (ii) Whole system is stationary. Given g=9.8 ms-2 |
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Answer» 120NExplanation:GIVEN,a=2ms −2 g=9.8ms −2 For T 1 T 1 −5g−T 2 =5×2=10T 1 −5g−T 2 =10 For T 2 T 2 −T 3 −2g=2×2=4T 2 −T 3 −2g=4 For T 3 T 3 −3g=3×2=6T 3 −2=6gT 3 =36N SOLVING the EQUTIONS,T 2 −36−20=4T 2 =60NT 1 =10+50+60=120N |
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