Answer:
(I)W=18×10³ J
(ii) P=720W
Step-by-step explanation:
30 Bricks = 1brick weight× 30 Bricks
30 Bricks= 12×30
=360N
Distance=50m
Time= 25s
1. Work done= Force× Distance
=360×50
= 18×10³ J
2. Power= Work done/ Time
18×10³/25
Power= 720W.
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