Home
Class 11
PHYSICS
A car of mass 2000kg is lifted up a dist...

A car of mass `2000kg` is lifted up a distance of `30m` by a crane in 1 minute . A second crane does the same job in 2 minues. Do the cranes consume the same or different amounts of fuel ? What is the power supplied by each crane ? Neglect power disspation against friction.

Promotional Banner

Topper's Solved these Questions

  • WORK, POWER AND ENERGY

    SL ARORA|Exercise Type E|6 Videos
  • WORK, POWER AND ENERGY

    SL ARORA|Exercise Type F|15 Videos
  • WORK, POWER AND ENERGY

    SL ARORA|Exercise Type C|5 Videos
  • Work, Energy and power

    SL ARORA|Exercise EXERCISE|415 Videos

Similar Questions

Explore conceptually related problems

A car of mass 2000 kg is lifted up a distance of 30m by a crane in 1 min. A second crane does the same job is 2 min. What is the power applied by each crane? Do the crnae? Do the caranes consume the same or different amount of fule? Neglect power dissipation against friction.

A car of mass 1500 kg is lifted up a distance of 30 m by crane A in 0.5 minutes. The second crane B does the same jod in 1 minute . The ratio of their powers is

A car having mass 4000 kg is lifted up a distance of 60 m by a crane in 2 min . A second crane does the same job in 4 min . How much fuel is consumed by two cranes ? What is the power supplied by each crane ? Ignore power dissipation against friction .

A body of mass 1000 kg is lifted up by a crane through a distance 15 min 1 minute. A second crane does the same job in two minute. What is the amount of work done by each crane and what is the ratio of their powers? (g=10m//s^(2))

One coolie takes 1 min to raise a box through a height 2 m . Another takes 30 s for the same job and does the same job and does the same amount of work. Which one of these two has a greater power and which one uses greaster energy ?

A man M_(1) of mass 80 kg runs up a staircase in 15 s . Another man M_(2) also of mass 80 kg runs up the same staircase in 20 s . The ratio of the power development by then will be:

One coolie takes 1min to raise a box through a height of 2m . Another one takes 30s for the same job and does the same amount of work. Which one of the two has greater power and which one uses greater enegy?

A crane lifts a mass of 100 kg to a height of 10 m in 20 s. The power of the crane is (Take g = 10 m s^(-2) )