Q. The spring balance inside a lift suspends an object. As the lift begins to ascent, the reading indicated by the spring balance will
A) Increase
B) Decrease
C) Remain unchanged
D) Depend on the speed of ascend
Explanation
(a) When the lift moves upwards, the apparent weight,
$= m(g + a)$. Hence reading of spring balance increases
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.