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A lift is designed to carry a load of 40...

A lift is designed to carry a load of 4000kg through 10 floors of a building averaging 6m per floor in 10seconds. Calculate the forse power of the lift.

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A lift is designed to carry a load of 4000 kg through 10 floors of a building, avarage 6m per floor, in 10s. Calculate the power of the lift.

An elevator in a building is designed to carry a load of 5000 kg throgh 10 floors . If height of each floor is 5 cm on an average and it takes 8 seconds to climb 10 floors , calculate the horse power of the lift .

Knowledge Check

  • A man carries a load of 50 kg through a height of 40 m in 25 seconds. If the power of the man is 1568 W , his mass is

    A
    5 kg
    B
    1000 kg
    C
    200 kg
    D
    50 kg

  • A motor pump lifts 6 tonnes of water from a height of 25 m to a height 35m from the ground floor in 20 seconds. The power of the pump (in kW) is [g = 10 ms^(-2)]

    A
    3
    B
    12
    C
    1.5
    D
    6

    • Similar Questions

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    (a) Define power. Give the SI unit of power. A boy weighing 40 kg carries a box weighing 20 kg to the top of a building 15 m high in 25 seconds. Calculate the power. ( g = 10 m//s^(2) )

    A motor pump lifts 6 tonnes of water from a well of depth 25 m to the first floor of height 35 m from the ground floor in 20 minutes. The power of the pump (in kW) is ______ (Take , g = 10 m s^(-2) )

    A lift, initially at rest on the ground, starts ascending with constant acceleration 8m//s^(2) After 0.5 seconds, a bolt falls off the floor of the lift. The velocity of the lift at the instant the bolt hits the ground is m/s .[Take g=10 m//s^(2) ]

    A rocket with a lift mass of 10,000 kg is blasted upwards with an acceleration of 10ms^(-2) . Calculate the initial thrust of the blast

    The mechanical advantage of a machine is 5 and its efficiency is 75%. A load of 300 kgf is lifted with the help of this machine up to the height of 15 m. Calculate the work done by the machine. (g = 10 m s^(-2) )

    9 persons enter a lift from ground floor of a building which stops in 10 floors (excluding ground floor), if it is known that persons will leave the lift in groups of 2,3, & 4 in different floors. In how many ways this can happen?

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