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Q.

An object is suspended from a spring balance in a lift. The reading is 240 N when the lift is at rest. If the spring balance reading now changes to 220 N, then the lift is moving

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a

Downward with constant speed

b

Downward with decreasing speed

c

Downward with increasing speed

d

Upward with increasing speed

answer is C.

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Detailed Solution

Acceleration is to be downward which is possible in option (c).
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