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A man of mass 70 kg stands on a weighing...

A man of mass 70 kg stands on a weighing scale in a lif which is moving
up wards with a uniform speed of `10"ms"^(-1)`.

Text Solution

Verified by Experts

Here , m = 70 kg , g = `10m//s^(2)`
The weighing machine in each case measures the reaction R i.e ., the apparent weight .
When the lift moves upwards with a uniform speed , its acceleration is zero .
`therefore R = mg = 70xx10 = 700 N`
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Knowledge Check

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