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A block of mass 5 \mathrm{~kg} starting from rest pulled up on a smooth incline plane making an angle of 30^{\circ}with horizontal with an affective acceleration of 1 \mathrm{~ms}^{-2}. The power delivered by the pulling force at \mathrm{t}=10 \mathrm{~s} from the starts is __________W.             [use \mathrm{g}=10 \mathrm{~ms}^{-2} ] (\text{Calculate the nearest integer value})

Option: 1

300


Option: 2

-


Option: 3

-


Option: 4

-


Answers (1)

best_answer

\quad F-m g \sin 30=m a
\mathrm{F}=5 \times 1+25=30 \mathrm{~N}
\mathrm{V}=\mathrm{u}+$ at $=0+1 \times 10=10
\mathrm{P}=\mathrm{FV}=30 \times 10=300 Watt

Posted by

Ajit Kumar Dubey

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