RRB Group D 3-Oct-2018 Shift 3 Solved Paper

Question : 87 of 100

Marks: +1, -0

A porter lifts a luggage of

11 {\kg}

from the ground and puts it on his head

1.5 {\m}

above the ground. Calculate the work done by him on the luggage.

({g}=10 {\ms}^{-2})

Solution:

Work done

={F} ×{d}=m×a×d

=11 ×10 ×1.5=165 {\J}

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