MCQOPTIONS
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| 1. |
In the above problem, if the lift moves up with a constant velocity of 2 m/sec, the reading on the balance will be [NCERT 1977] |
| A. | 2 kg |
| B. | 4 kg |
| C. | Zero |
| D. | 1 kg |
| Answer» B. 4 kg | |