Physics
posted 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.

Physics 
Damon
work done = m g h = 40 * 9.81 * 30 * 0.150 Joules
power in Watts = work done / 6 seconds 
Physics 
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// 
Physics 
Anyaegbunam OnyinyeChukwu Judith
0.3kw
Respond to this Question
Similar Questions

physics
A man whose mass is 75kg walks up a flight of 12 steps each 20 cm high in 5 seconds . Find the power he develops in watts 
Physics
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). 
physics
a boy weighing 350N runs up a flight of stairs consisting of 20 steps each 10cm high in 10 seconds. What is his power? 
Physics
Please help me with this question How much work is done by a boy of mass 70kg who ran up a flight of 31steps each15m high. Take g=10m/s^2 
Physics
A boy whose mass is 40kg runs up a flight of 30 steps each.150mm,in 6secs find d average power developed (take g =10m/s sguaree) 
PHYSICS:
A boy weighing 350N runs up a flight of stairs consisting of 20 steps each 10 cm high in 10 seconds.what is his power? 
science
a boy whose mass is 69kg climbs a tree 10m high in 12s .calculate the work done and power developed 
physics, english, chemistry, maths
A girl whose mass 404g walk up a flight of 20steps each 150mm height in 10s find the average power developed Hint g = 10m/S 
Physics
a boy whose weight is 600 N runs up a flight of stairs 10 m high in 12 second .What is his average power? 
Phyics
A boy whose mass is 40kg runs up a flight of 30 steps,each 150mm high,in 6secs.find the average power developed.(take g=10m/s^2.