Find out the power developed while lifting a box of mass 38 kg at a constant velocity of 4 ms-¹ against gravity .Take g=20 ms-²
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Find out the power developed while lifting a box of mass 38 kg at a constant velocity of 4 ms-¹ against gravity .Take g=20 ms-²
[tex] \mathtt \red { NOTE}[/tex]
Don't give ajeebo gareeb answers
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Answer:
Force =mt(v−u)=m⋅a
Displacement =2a(v2−u2)
Word done (W) = Force × Displacement
=m⋅a⋅2a(v2−u2)
W =21m(v2−u2)
W =21×20×(2500−1600)
=21×20×900
=9000J
Therefore, the work done to attain the final velocity is 9000J
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Answer:
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