A) 9800 N
B) 10800 N
C) 11000 N
D) 10000 N
Correct Answer: B
Solution :
Key Idea: The tension in the string during upward motion increases from weight of life due to its upward acceleration. When lift moves upward with same acceleration then T ? mg = ma or T = m (g + a) Given \[m=1000kg,\,\,a=1\,\,m/{{s}^{2}},\,g=9.8\,m/{{s}^{2}}\] Thus, T = 1000 (9.8+1) \[=1000\,\times 10.8\] = 10800 NYou need to login to perform this action.
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