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in the above problem if the lift moves up with an acceleration equal to tha acceleration due to gravity the reading on the spring balance will be
Asked by shrutishrivastava2505 | 04 Dec, 2023, 11:55: AM
Let m be the mass and g is acceleration due to gravity

hence weight mg is acting downwards and tension force in the connecting string with spring balance acting upwards.

Net force acting on the mass is  (T - mg ) .

From Newton's second law , net force = mass × acceleration

since mass is subjected to acceleration g due to acceleration of lift , then we get

T - mg = m a

T = m ( g + a )

Hence the reading of spring balance is related to T = m(g+a)

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