Question

please solve this question its urgent . If you dont know then please do not give stupid answers..

Answer 1

I m not getting what u actualy want to know..
because u have all ur formula written in qustn correct jst put the data nd get the answer
anyways
F = mg = 40*10 =400 Newton
W = mgh =40*10*8 = 3200 Joule
P. = W/t = 3200 /5 = 640 watt