Question

Calculate the work done in pushing a box through a distance of 50 m against the force of friction equal to 250 N. Also state the type of work done.

Answer 1

Distance moved by box = 50 m

Force acting on box = 250 N

★ Work done = force × displacement

= 250×50 = 12500 J

Answer 2

ஜ۩۞۩ஜ ӇЄƳƛ MƛƬЄ ஜ۩۞۩ஜ

Answer...

Formula for work done →

W = F x s

W = 250 x 50

W = 12500 J

or

W = 12.5 x 10³ J

★The work done is negative because force of friction and displacement are in opposite directions.

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