Home
Class 11
PHYSICS
A man of mass 60 kg climbed up 15 steps,...

A man of mass 60 kg climbed up 15 steps, each of height 15 cm. Find the work done .

Text Solution

Verified by Experts

The correct Answer is:
1323 J
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise PROBLEM SET -II|47 Videos

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise PROBLEM SET -II (Hots Numerical Problems)|9 Videos

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise EXERCISE (short Answer Type Questions-II)|7 Videos

  • WBCHSE QUESTION PAPER -2019

    CHHAYA PUBLICATION|Exercise SECTION - II ( GROUP -D)|10 Videos

Similar Questions

Explore conceptually related problems

Applying a force of F =196 N upwards, a body of mass 10 kg is raised up to a height of 10 m. Find the work done by the force F and the work done against gravity. Note that the work done by the force F is more than the gravitational potential energy . Show how the law of conservation of energy is still obeyed.

A man of mass 100 kg climbs up a ladder of height 10 m. The ladder makes an angle 60^@ with the horizontal . Express the work done by the man against gravity, in SI unit . g=980 cm*s^(-2)

Knowledge Check

  • A container with a mass of 5 kg is lifted to a height of 8m. How much work is done by the gravitational force ? [g = 10 m_(-5)]

    A
    400 J
    B
    `-400 J`
    C
    zero
    D
    none of the above

    • Similar Questions

    Explore conceptually related problems

    A man of mass 60 kg , climbed 20 steps in 10 s carrying load of 20 kg over his head. Each step was 20 cm high . Find the power of the man.

    A ladder of mass 30 kg and length 5 m is kept leaning against a vertical smooth wall. A man of mass 60 kg climbed up (3)/(4) th the length of the ladder. If the coefficient of friction between the floor and the ladder is 0.5, what should be the maximum distance of the foot of the ladder from the wall to avoid slipping?

    A man of mass 50 kg clikmbs up 20 steps of a staircase in 5s . Each step is 30 cm high. Find the power applied by the man .

    A man of mass 100 kg climbs up a ladder of length 10m. The ladder makes angle 60^@ with the horizontal . Find the work done by the man against gravity in climbing up the ladder . [g= 9.8m*s^(-2)] .

    A man of mass 50 kg ascends 30 steps of a staircase in 15 seconds. If the height of each step of the staircase is 20 cm, find the power of the man (g=9.8 m//s^(2)).

    A ball of mass 0.5 kg thrown upwards reaches a maximum height of 5m.Calculate the work done by the force of gravity during this vertical displacement considering the value of g =10m//s^(2) .

    A boy of mass 20 kg , moved up to the top of a building of height 18 m , carrying a box of mass 2.5 kg. if he did this in 1.5 min, what was his rate of doing work ?

    Home
    Profile