Water falls from a height of 60 m at the...

Water falls from a height of `60 m` at the rate `15 kg//s` to operate a turbine. The losses due to frictional forces are `10%` of energy . How much power is generated to by the turbine? (g=10 m//s^(2))`.

0.9 kW

0.4 kW

0.3 kW

0.6 kW

Text Solution

Verified by Experts

The correct Answer is:

Given ,h=60m,g=`10ms^(-2)`
Rate of flow of water =15 kg/s
`therefore` Power of the falling water
`=15 kgs^(-1)xx10ms^(-2)xx60m=9000 watt.`
Loss in energy due to friction
`=9000xx(10)/(100)=900 watt.

Topper's Solved these Questions

CONCEPT BUILDER
DISHA PUBLICATION|Exercise Exercise-1 Concept Builder (topic 4:Collisions)|1 Videos
CONCEPT BUILDER
DISHA PUBLICATION|Exercise Exercise-2 Concept Applicator|27 Videos
CONCEPT BUILDER
DISHA PUBLICATION|Exercise Exercise-1 Concept Builder (Topic 2:Energy)|15 Videos
COMMUNICATION SYSTEM
DISHA PUBLICATION|Exercise EXERCISE-2 : Concept Applicator|30 Videos
CURRENT ELECTRICITY
DISHA PUBLICATION|Exercise EXERCISE-2 Concept Applicator|23 Videos

Similar Questions

Explore conceptually related problems

Water falls from a height of 60m at the rate of 15 kg/s to operate a turbine. The losses due to frictional force are 10% of the input energy. How much power is generated by the turbine?

Water is falling on the blades of a turbine from a height of 25 m . 3 xx 10^(3) kg of water pours on the blade per minute. If the whole of energy is transferred to the turbine, power delivered is g = 9.8 m//s^(2)

A metal ball of mass 5 kg falls from a height of 490 m. How much time will it take to reach the ground ? (g=9.8m//s^(2))

From a waterfall, water is falling down at the rate of 100kg / s on the blades of turbine. If the height of the fall is 100 m , then the power delivered to the turbine is approximately equal to

A lorry of mass 2000 kg is traveling up a hill of certain height at a constant speed of 10 m/s. The frictional resistance is 200 N, then the power expended by the coolie is : (g=10 m//s^(2))

An object of mass 5 kg falls from rest through a vertical distance of 20 m and reaches a velocity of 10 m/s. How much work is done by the push of the air on the object ? (g=10m//s^(2)).

DISHA PUBLICATION-CONCEPT BUILDER-Exercise-1 Concept Builder (topic 3:Power)

A car of mass m starta from rest and accelerates so that the instyanta...
Text Solution
|
The power of a motor pump is 2kW. How much water per minute the pump c...
Text Solution
|
A body of mass m accelerates uniformly from rest to v1 in time v2. As ...
Text Solution
|
Johnny and his sister Jane race up a hill.Johnny weights twice as much...
Text Solution
|
if a particle F is applied on a body and it moves with a velocity v ,...
Text Solution
|
An electric motor exerts a force of 40 N on a cable and pulls it by a ...
Text Solution
|
An engine pumps water continously through a hose. Water leave the hose...
Text Solution
|
If two person A and B take 2 s and 4 s, respectively to lift an object...
Text Solution
|
A body of mass 10 kg moves with a constant speed v of 2 ms^(-1) along ...
Text Solution
|
An engineer claims to have made an engine delivering 10 kW power with ...
Text Solution
|
A force applied by an engine of a train of mass 2.05xx10^6kg changes i...
Text Solution
|
A 10 m long iron chain of linear mass density 0.8 kg m^(-1) is hanging...
Text Solution
|
A force 2hati+3hatj+4hatk N acts on a body for 4 sec, produces a displ...
Text Solution
|
An elevator can carry a maximum load of 1800 kg (elevator + passengers...
Text Solution
|
A car of mass m is driven with acceleration a along a straight level r...
Text Solution
|
An engine is hauling a train of mass m on a level track at a constant ...
Text Solution
|
An automobile moves under the action of a constant power supplied by i...
Text Solution
|
Water falls from a height of 60 m at the rate 15 kg//s to operate a tu...
Text Solution
|
Ten litre of water per second is lifted from well through 20m and deli...
Text Solution
|
An automobile of mass m accelerates, starting from rest, while the eng...
Text Solution
|