+91-87964 74404
FlagBACK
Question icon
Grade 12th passModern Physics

A pump ejects 12 KG of water at speed of 4 metre per second in 40 seconds. find the average rate at which the pump is working

Profile image of Harsh
8 Years agoGrade 12th pass
Answers icon

1 Answer

Profile image of Arun
ApprovedApproved Tutor Answer8 Years ago
Dear Harsh
 
F = m*v/t
A = Fs
S = v*t
A = m*v²
Rate of working P = A/t
P = m*v²/t
P = 12000* 4²/40 = 4800 watt = 4.8 KW
average rate of working is 4.8 kW
 
Regards
Arun (askIITians forum expert)

Other Related Questions on modern physics

question mark
A particle is projected in vertical plane such that after 5 seconds its velocity becomes horizontal. The maximum height attained by the projectile from point of projection is n3 m. The value of n is _______. (g = 10 m/s2)
modern physics
1 Answer Available

Last Activity: 3 Years ago

question mark
Two particles approach each other from very large distance as shown, . if the least separation between the particles is b, what is the speed of M in center of mass frame when particles are closest? (gravity negligible)
modern physics
1 Answer Available

Last Activity: 4 Years ago

question mark
Can the sum of two equal vectors be equal to either vector
 
modern physics
1 Answer Available

Last Activity: 4 Years ago

question mark
A nucleus X184 at rest emitt alpha particle With kinetic energy 9.0MeV. The product Nucleus is Y. The values of Binding energy per nucleon of alpha particle & Y differ by 1.5MeV. The values of Binding energy per nucleon of X & Y differ by (n÷230) MeV, then n is
modern physics
1 Answer Available

Last Activity: 4 Years ago

question mark
SUBJECT: PROBLEM BASED ON LINE DETECTION.
Query: How to apply all the filters for line detection on the following piece of image (provided below)? Explain its Observations to comment on its results.
modern physics
1 Answer Available

Last Activity: 4 Years ago