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 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.

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 2000 kg is lifted up a distance of 30 m by a crane in 1 min. A second crane does the same job in 2 min Do the crunes consume the same or diferent amounts of fuel What is the power supplied by cacheranu? Negleat Power dissipation against friction.

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))

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:

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: