Asked by Igbekele

A boy whose mass is 40kg runs up a flight of 30 steps each 150mm high in 6seconds. Find the average power developed (take g as 10m/s^2.
Answered by Damon
work done = m g h = 40 * 9.81 * 30 * 0.150 Joules

power in Watts = work done / 6 seconds
Answered by EKEZIE MICHAEL NWOKEUKWU
g=a=10m/s^2,

M=40kg,

S=150mm/1000=0.15m*30steps each=4.5m,

F=ma=40*10=400N


.'. Power=W/t=F*s/t=F*V=1800/6 = 300W Ans// or 0.3kW Ans//
Answered by Anyaegbunam OnyinyeChukwu Judith
0.3kw
Answered by Ogah Cletus
Thanks so much for your assistance
Answered by bana
what is the kinetic energy of a 0.75 kg apple falling at 12m\s?
Answered by jude
k.e=1/2mv^2
1*0.75*12^2divide by 2=54j
Answered by Success Omasirichi
Thank you very much
Answered by Bernice
Thanks helped with my assignment
Answered by FAVOUR
THE QUESTION AND THE ANSWER.
Answered by FAVOUR
I WANT THE PHYSICS QUESTION AND THE ANSWER.
Answered by FAVOUR
A GIRL WHOSE MASS IS40KG WALK UP A FLIGHT OF20,STEP EACH 150MM HEIGHT IN TEN SEC. FIND THE AVERAGE POWER DEVELOPED(G=10M/S2). I WANT THE ANSWER NOW.
Answered by Opjnice
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