Home
Class 12
PHYSICS
The gravitational field in a region is g...

The gravitational field in a region is given by `vecE = (3hati- 4hatj) N kg^(-1)`. Find out the work done (in joule) in displacing a particle by `1 m` along the line `4y = 3x + 9`.

Text Solution

Verified by Experts

The correct Answer is:
0
For the line `4y=3x+9`
`4dy+3dx,4dy-3dx=0` ..(i)
For work in the region
`dW=vecE.(dxhati+dyhatj)=(3hati-4hatj).(dxhati+dyhatj)`
`=3dx-4dy` (from equation (i)) =0
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    ALLEN |Exercise Exercise 4 B (Brain Storming Subjective Exercise)|20 Videos

  • GRAVITATION

    ALLEN |Exercise Exercise 5 A (Previous Year Questions)|26 Videos

  • GRAVITATION

    ALLEN |Exercise Exercise 3 (Miscellaneous Type Questions)|20 Videos

  • GEOMETRICAL OPTICS

    ALLEN |Exercise subjective|14 Videos

  • KINEMATICS-2D

    ALLEN |Exercise Exercise (O-2)|47 Videos

Similar Questions

Explore conceptually related problems

A body is displaced by 2m in Z - direction by a force (-4,2,6)N . Find the work done ……….

A particle is projected from ground with initial velocity 3hati + 4hatj m/s. Find range of the projectile :-

A particle has velocity (6t^3hati+8t^2hatj) ms^(-1) find the velocity of the particle

Find the area of the region bounded by the curve y^(2) = 4x and the line x = 3.

The electric field in the region of the space is vecE = (5hati + 2hatj + 3hatk)NC^(-1) . The electric flux passing through a surface of area 50m^2 placed in X-Y plane inside the electric field is.......

Find the area of the region bounded by the curve y^2 = 4x and the line x=3

Find equation of line whose y- intercept is (4)/(3) and perpendicular to the line 3x-4y+11=0 .

A force (3hati+4hatj) newton acts on a boby and displaces it by (3hati+4hatj) metre. The work done by the force is

A force (3hati+2hatj) N displaces an object through a distance (2hati-3hatj) m. The work done is :