A man of 80 kg mass stands on a weighing machine in a lift which is moving upwards with a uniform speed of 5 m/s. The reading of the weighing machine will be (Take g = 10m/s2) |
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(a) |
zero |
(b) |
400 N |
(c) |
800 N |
(d) |
|
A man of 80 kg mass stands on a weighing machine in a lift which is moving upwards with a uniform speed of 5 m/s. The reading of the weighing machine will be (Take g = 10m/s2) |
|||||||
(a) |
zero |
(b) |
400 N |
(c) |
800 N |
(d) |
|