A body of mass 4kg weights 4.8kg when suspended in a moving lift. The acceleration of the lift is
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M(a+g) =4.8g
Ma =4.8g-4g=0.8g
a =0.8/4g=0.2g=2m/s
Ma =4.8g-4g=0.8g
a =0.8/4g=0.2g=2m/s
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Answer:
1.96ms-2 upward
the correct answer
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