AIPMT PRELIMS2011Physics-Laws of Motion
AIPMT PRELIMS 2011 Physics Newton's Second Law MCQ Question
Type: MCQ-numerical-Medium-Class 11
A person of mass 60 kg enters a lift of mass 940 kg and presses the button one control panel. The lift starts moving upwards with an acceleration 1.0 m/s². If g = 10 m/s², the tension in the supporting cable is
A
1200 N
B
8600 N
C
9680 N
D
11000 N
Correct Answer
Option D
Detailed Explanation
The tension T in the cable is calculated using T = (M + m) (g + a). Substituting the values, T = (940 + 60) (10 + 1) = 11000 N.
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