An object is suspended from a spring balance in a lift. The reading is 240N when the lift is at rest. If the spring balance reading now changes to 220N, the the lift is moving
A
Downward with constant speed
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B
Downward with decreasing speed
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C
Downward with increasing speed
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D
Upward with increasing speed
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Solution
The correct option is D Downward with increasing speed
Since the apparent weight of the body decreases, the lift should move downward with some acceleration.