NEET Class neet Answered
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
Expert Answer
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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