A car of mass 2000 kg is lifted up a distance of 30m by a crane in 1 min. A second crane
Channel: Doubtnut
Date: 2020-07-26

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.