Home
Class 12
PHYSICS
An engine pulls a train over 5 km of dis...

An engine pulls a train over 5 km of distance by applying a force of `5xx10^6` Newton. Calculate the work done by it .

Text Solution

Verified by Experts

`W=Fs, F=5xx10^6 N,s=5 km
W=5xx10^6Nxx5000m=2.5xx10^10 N.m
2.5xx10^10` joule.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • WAVES

    MBD PUBLICATION|Exercise QUESTION BANK|295 Videos

Similar Questions

Explore conceptually related problems

A point charge of 3 xx 10^(-9)C is released from rest in a uniform electric field and moves a distance of 5cm after which its kinetic energy becomes 4.5 xx 10^(-5)J . Calculate the magnitude of the electric field.

Air initially under a pressure of 10^5N//m^2 is compressed adiabatically to 1//16 times its original in a diesel engine. Calculate the work done in the process. gamma_(air) =1.4

Knowledge Check

  • A body moving along a circular path with uniform speed covers a distance of 10m. If the centripetal force acting on it is 5 N. Calculate the work done by the force ?

    A
    1 J
    B
    0 J
    C
    2 J
    D
    3 J
  • A drops of mercury, 2mm in a diameter is broken up into 1000 droplets, all of the same size. Calculate the work done in the prosses, if surface tension of mercury is 460 xx 10^-3 N/m .

    A
    `6.9 xx 10^-6 J`
    B
    `5.2 xx 10^-5 J`
    C
    `6.12 xx 10^-5 J`
    D
    `5.5 xx 10^-4 J`
  • A car cover's a distance of 10 km along an inclined plane under the action of a horizontal force of 5 N. The work done on the car is 25 KJ the inclination of the plane to the horizontal is

    A
    `0^@`
    B
    `30^@`
    C
    `60^@`
    D
    `90^@`
  • Similar Questions

    Explore conceptually related problems

    A block of mass 2 kg is placed on the floor. The coefficient of static friction is 0.4. A force F of2.5 N is applied on the block as shown. Calculate the force of friction between the block and the floor

    Two point charges A and B of value +5xx10^(-9)C and +3xx10^(-9)C respectively are kept 6 cm apart in air. Calculate the work done when charge B is moved by one cm towards charge A.

    Two point charges A and B of value +5xx10^(-9)C and +3xx10^(-9)C respectively are kept 6 cm apart in air. Calculate the work done when charge B is moved by 1 cm towards charge A.

    The electric field at a point on the axial line at a distance of 10 cm from the centre of an electrc dipole is 3.75xx10^(5) N/C in air, while at a distance of 20 cm, the electric field is 3xx10^(4) N/C. Calculate the length of an electric dipole.

    an electric dipole consisting of two opposite charges of 2xx10^(-6) C each separated by a distance of 3 cm is placed in an electric field of 2xx10^(5) N/C. The maximum torque on the dipole will be