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