A 50 kg boy stands on a platform spring scale in a lift that is going down with a…
Physics · JEE Main · NTA Exams — Laws of Motion
A 50 kg boy stands on a platform spring scale in a lift that is going down with a constant speed 3 m/s. If the lift is brought to rest by a constant deceleration in a distance of 9 m, what does the scale read during this period?
(g = 9.8 m/s2)
(g = 9.8 m/s2)
- 500 N
- 465 N
- 515 N
- zero
Answer
(C) 515 N
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