a horizontal force pulls a 20kg box at a constant speed along a horizontal floor if the coefficient of friction between the box and the floor is 0.25 how much work is done by the force F in moving the box through a distance of 2moption 49j {2} 98 {3} 147 {4} 196

#Physics #Distance

1498 Views

a horizontal force pulls a 20kg box at a constant speed along a horizontal floor if the coefficient of friction between the box and the floor is 0.25 how much work is done by the force F in moving the box through a distance of 2moption 49j {2} 98 {3} 147 {4} 196

Kapil 7th Sep, 2019

Answer

Answer Later

Report

Answer (1)

Upendra Gupta 31st Oct, 2019

Hiii Kapil answer to your question is

Since the box is moved at a constant velocity,the applied force F just overcomes the frictional force f,i.e,

F=f=μmgF=f=μmg

∴∴ Work done W=FScosθ=μmgScos0W=FScosθ=μmgScos0

⇒0.25×20×9.8×2=98J

Hope you like the answer....keep asking we are always looking for you to help....may you have a very bright future

Like Share

Related Questions

Sand is being dropped on a belt at rate of 2 kg/s the force necessary to keep the belt moving with constant speed 3m/s

66 Views

A body moving in a circular path with a constant speed has a.constant v b. Constant p c. Constant k.E. d. Constant acceleration

4756 Views

The vertical masses 1kg and 2kg rest on smooth horizontal table.when a 2 kg block is pulled by certain force F,the tension T in the string

2350 Views

Two particles of masses 2m and 3M are at a distance D apart under their mutual gravitational force they start moving towards each other the

931 Views

A passenger travelling in a train moving with constant velocity drops a stone from the projectile will appear to be.... (A) Straight line,

1531 Views

Applications for Admissions are open.

Amity University | B.Sc Admis...

Apply

Ranked amongst top 3% universities globally (QS Rankings)

Galgotias University | Admiss...

Apply

25+ years of legacy | NAAC A+ Grade | 800+ Recruiters | 1.5 CR-Highest Package

Shoolini University Admission...

Apply

NAAC A+ Grade | Ranked No.1 Private University in India (QS World University Rankings 2025)

Graphic Era (Deemed to be Uni...

Apply

NAAC A+ Grade | Among top 100 universities of India (NIRF 2024) | 40 crore+ scholarships distributed

Amity Online MBA

Apply

Apply for an Online MBA from Amity Online.

UPES B.Sc Admissions 2025

Apply

Ranked #46 amongst Universities in India by NIRF | 1900+ Students Placed | 94% Placement | 633+ Recruiters | Last Date to Apply: 31st August | Admi...

View All Application Forms

Trending Articles/News

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students

30,000+ Colleges

500+ Exams

1500+ E-books