Question

Explain the statement that work of 300J is done

Answer 1

Answer:

work done is 300 J

Explanation:

it means that for example if you do a work that implies you have done 300 J of work on that thing.

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Answer 2

100 J

Given,

Work done =300J, mass=2kg,height=10m,g=10m/s2

we know that the work done =fd

300=(mgsinθ+f)×sinθ/h

Work-done against the friction:f. sinθ/h

=300−mg/sinθ× sinθ/h

⇒300−mgh=300−2×10×10=100J