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Free Body Diagram

A lift weighi...

Question

A lift weighing $1000 k g$ is moving upward with an acceleration of $1 m / s^{2}$ . The tension in the supporting cable is

980 N

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10800 N

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9800 N

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8800 N

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Solution

The correct option is B $10800 N$
Given,
$m = 1000 k g$
$a = 1 m / s^{2}$
$g = 9.8 m / s^{2}$

The tension in the supporting cable is
$T = m (a + g)$
$T = 1000 (1 + 9.8)$
$T = 1000 \times 10.8$
$T = 10800 N$
The correct option is B.

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