Question

A man of mass 50 kg is lowering a block of mass 10 kg with acceleration of 4m/s2.The reading of the machine is?

Answer 1

98 kg is the weight reading in the machine as
weight=mass ×gravity

Answer 2

Given that,

Mass of man, m = 50 kg

Mass of block, m' = 10 kg

Acceleration of the block, $a=4\ m/s^2$

To find,

The reading of the machine.

Solution,

Let T is the tension in the machine. The net force acting on the block is given by :

$mg-T=ma\\\\T=m'(g-a)\\\\T=10(10-4)\\\\T=60\ N$

So, the reading of the machine is 60 N.

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