gaya14
Answered

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A 40 kg boy is moving upwards upwards in a lift with an acceleration of 2 m /s ^2 what would be the weight felt by him if measuured in a scale?

Sagot :

NusrathC

Answer:

48kg

[tex]f = ma \\[/tex]

[tex]w \: = \frac{f}{g} \\ [/tex]

Explanation:

[tex]f \: = ma \\ f - mg = ma \\ f = ma + mg \\ f = 40 \times 2 + 40 \times 10 \\ f = 480[/tex]

[tex]w = \frac{f}{g} \\w = \frac{480}{10} \\ w = 48kg[/tex]

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