An elevator cable is to have a maximum stress of `7xx10^(7) Nm^(-2)` to allow for appropriate safety factors. Its maximum upward acceleration is `1.5 ms^(-2)` . If the cable has to support the total weight of 2000 kg of a loaded elevator , the area of cross-section of the cable should be

An elevator cable is to have a maximum stress of 7 xx 10^(7) Nm^(-2) to allow for appropriate safety factors. Its maximum upward acceleration is 1.5 ms^(-2) . If the cable has to support the total weight of 2000 kg of a loaded elevator, the area cross-section of the cable should be

A lift of mass 2000 kg is supported by thick steel ropes . If maximum upward acceleration of the lift be 1.2 m//s^(2) , and the breaking stress for the ropes be 2.8 xx 10^(8) Nm^(-2) what should be the minimum diameter of rope ?

The elastic limit of a steel cable is 3.0xx10^(8) N//m^(2) and the cross-section area is 4 cm^(2) . Find the maximum upward acceleration that can be given to a 900 kg elevator supported by the cable if the stress is not to exceed one - third of the elastic limit.

The elastic limit of a steel cable is 3.0xx10^(8) N//m^(2) and the cross-section area is 4 cm^(2) . Find the maximum upward acceleration that can be given to a 900 kg elevator supported by the cable if the stress is not to exceed one - third of the elastic limit.

A body hangs from a spring balance supported from the roof of an elevator. (a) If the elevator has an upward acceleration of 2.45 ms^(-2) and the balance reads 50N, what is the true weight of the body? (b) Under what circumstances will the balance read 30N? (c) What will be the balance reading if the elevator, cable breaks?

A body hangs from a spring balance supported from the roof of an elevator. (a) If the elevator has an upward acceleration of 2.45 ms^(-2) and the balance reads 50N, what is the true weight of the body? (b) Under what circumstances will the balance read 30N? (c) What will be the balance reading if the elevator, cable breaks?

A person of mass 940 kg and presses the button on control panel. Then lift starts moving upwards with an acceleration 1.0m//s^(2) . If g=10ms^(-2) , the tension in the supporting cable is:

A person of mass 940 kg and presses the button on control panel. Then lift starts moving upwards with an acceleration 1.0m//s^(2) . If g=10ms^(-2) , the tension in the supporting cable is:

A lift of mass 2000 kg is supported by thick steel ropes. If maximum upward acceleration of the lift be 1.2 m//s^(2) , and the breaking stress for the ropes be 2.8 xx 10^(8) N/ m^(2) , what should be the minimum diameter of the rope?