(D) The force exerted by a fluid jet hitting a wall and coming to rest is given by the rate of change of momentum.$F = \frac{dp}{dt} = \frac{d(mv)}{dt

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

(D) The force exerted by a fluid jet hitting a wall and coming to rest is given by the rate of change of momentum.$F = \frac{dp}{dt} = \frac{d(mv)}{dt} = v \frac{dm}{dt}$.Since the mass flow rate $\frac{dm}{dt} = \rho A v$,the force is $F = \rho A v^{2}$.Given:Density $\rho = 1000 \, kg/m^{3}$Area $A = 10 \, cm^{2} = 10 \times 10^{-4} \, m^{2} = 10^{-3} \, m^{2}$Velocity $v = 20 \, m/s$Substituting the values:$F = 1000 \times 10^{-3} \times (20)^{2}$$F = 1 \times 400 = 400 \, N$.

Class 11 Physics Fluid Mechanics and Surface Tension Force due to Liquid in pipe

Medium

$A$ pressure-pump has a horizontal tube of cross-sectional area $10 \, cm^{2}$ for the outflow of water at a speed of $20 \, m/s$. The force exerted on the vertical wall just in front of the tube,which stops the water horizontally flowing out of the tube,is $... N$ [Given: density of water $= 1000 \, kg/m^{3}$].

JEE MAIN 2022 All JEE MAIN

A
$300$
B
$500$
C
$250$
D
$400$

Explore More

Browse All

Question Bank

All Subjects

Class 11 Questions

Class 11

Physics Questions

Chapter

Fluid Mechanics and Surface Tension

Subtopic

Force due to Liquid in pipe

Previous Year

JEE MAIN 2022 Paper All JEE MAIN years →

$A$ tube of length $L$ is filled completely with an incompressible liquid of mass $M$ and closed at both the ends. The tube is then rotated in a horizontal plane about one of its ends with a uniform angular velocity $\omega$. The force exerted by the liquid at the other end is

DifficultAIPMT 2006 IIT 1992

View Solution

Water is filled to a height $H$ behind a dam of width $w$. The resultant force on the dam is ..............

Medium

View Solution

$A$ jet of water having velocity $v = 10 \ m/s$ and stream cross-section $A = 2 \ cm^2$ hits a flat plate perpendicularly,with the water splashing out parallel to the plate. The plate experiences a force of ....... $N$.

Difficult

View Solution

$A$ jet of water with a cross-section of $6 \ cm^2$ strikes a wall at an angle of $60^{\circ}$ to the normal and rebounds elastically from the wall without losing energy. If the velocity of the water in the jet is $12 \ m/s$,the force acting on the wall is ....... $N$.

Medium

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

Similar Questions

$A$ tube of length $L$ is filled completely with an incompressible liquid of mass $M$ and closed at both the ends. The tube is then rotated in a horizontal plane about one of its ends with a uniform angular velocity $\omega$. The force exerted by the liquid at the other end is

Water is filled to a height $H$ behind a dam of width $w$. The resultant force on the dam is ..............

$A$ jet of water having velocity $v = 10 \ m/s$ and stream cross-section $A = 2 \ cm^2$ hits a flat plate perpendicularly,with the water splashing out parallel to the plate. The plate experiences a force of ....... $N$.

$A$ jet of water with a cross-section of $6 \ cm^2$ strikes a wall at an angle of $60^{\circ}$ to the normal and rebounds elastically from the wall without losing energy. If the velocity of the water in the jet is $12 \ m/s$,the force acting on the wall is ....... $N$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module