Start Free Mock LoginAlready registered? Login here

Physics - W.E.P. Question with Solution | TestHub

PhysicsW.E.P.PowerEasy2 minPYQ_2020

PhysicsEasysingle choice

A motor pump lifts 6 tonnes of water from a height of 25 m to a height 35 m from the ground floor in 20 seconds. The power of the pump (in kW) is $[g = 10 m s^{- 2}]$

Options:

Answer:

Solution:

Given,

Height of first floor $(h) = 35 m$

Time $(t) = 20 \min$

We know that,

$P = \frac{w o r k}{t i m e}$

$P = \frac{m g h}{t}$ $[∵ w o r k = m g h]$

$= \frac{600 \times 10 \times (35 - 25)}{20}$

$= \frac{600 \times 10 \times 10}{20}$

$= \frac{6000}{2} = 3000 W = 3 k W$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:W.E.P.Subtopic:Power

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...