Question

Check whether work is done in the following situations; if yes find the amount of work.

a. A person holding a suitcase of mass 14 kg and waiting at the bus shelter.

b. A man carrying a suitcase of 20 Kg over his head and walking a distance of 10 m vertically over a staircase.​

Answer 1

the work is done by the man in B option

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Hey here is your answer.

$\frac{5x - 4}{8} - \frac{x - 3}{8} = \frac{x + 6}{4}$

$\frac{(5x - 4) - ( x - 3)}{8} = \frac{x + 6}{4}$

$\frac{(5x - 4 - x + 3)}{8} = \frac{x + 6}{4}$

$\frac{(4x - 1)}{8} = \frac{x + 6}{4}$

$\frac{(4x - 1)}{8} = \frac{x + 6}{4}$$now \: cross \: multiply$

$4 \times (4x - 1) = 8 \times (x + 6)$

$16x - 4 = 8x + 48$

$16x - 8x = 48 + 4$

$8x = 52$

$x = \frac{52}{8}$

$x = \frac{13}{4} answer$

This is your answer.

Hope this helps you.

please mark it BRAINLIEST