Physics, asked by Mloniya, 1 year ago

a women draw water from a well of depth 15m in 15 sec if the mass of bucket drawn is 10kg calculate the power used by her

Answers

Answered by Sanjana5428

Hi friend,

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h= 15m, t= 15 s ,m= 10kg, g=10m/s2

p=w/t = f .S /t = m.a.s /t = m.g.s /t
= 10.10.15/15
=1500/15
=100watts

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Sanjana5428: I have doubt weather it is wright or wrong.. Once check plz

Mloniya: Your answer is correct

Sanjana5428: Oh okk..tq

Mloniya: Thanks

Sanjana5428: Ur welcome sis....:)

Mloniya: How can we prevent exposure to:

(a) vector borne infection

(b) water brone infection

(c) air borne infection

Answered by rohitree9

Answer: given H=15m,T=15s,m=10kg

So,

Workdone=mgh(it is against gravity)

W=10×10×15=1500 joules

So,

Power =work÷time

P=1500÷15=100 joules.

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