A) 24 N
B) 74 N
C) 15 N
D) 49 N
Correct Answer: A
Solution :
In stationary position, spring balance reading \[=mg=49\] \[m=\frac{4.9}{9.8}=5\,\,kg\] When lift moves downward. \[mg-T=ma\] Reading of balance \[T=mg-ma\] \[=5(9.8-5)\] \[=5\times 4.8\] \[=24\,\,N\]You need to login to perform this action.
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