A force 250N is required to lift a 1200N weight through a pulley system in order to lift the weight through 1m. The rope has to be pulled through 5. F

Question

A force 250N is required to lift a 1200N weight through a pulley system in order to lift the weight through 1m. The rope has to be pulled through 5. F

A force 250N is required to lift a 1200N weight through a pulley system in order to lift the weight through 1m. The rope has to be pulled through 5. Find the efficiency of the system.

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Related Questions

Show that for a first order reaction, time required for `99.99%` of the reaction to take place is 10 times the time required for the completion of hal

2 Answers 5 Views

A monkey of mass 40 kg climbs on a rope which can withstand a maximum tesion of 600 N In which of the following cases will the rope break ? The monkey

2 Answers 4 Views

A man, of mass 60kg, is riding in a lift. The weights of the man, when the lift is acceleration upwards and downwards at `2ms^(-2)` are respectively.

2 Answers 4 Views

Two persons are holding a rope of negligible weight tightly at its ends so that is horizontal. A 15kg weight is attached to the mid point which how no

2 Answers 5 Views

A ship of mass `3xx10^(2)kg` initially at rest is pulled by a force of `5xx10^(4)` N through a distance of 3m. Neglecting frcition, the speed of the s

2 Answers 9 Views

A rope lies on atable such that a part of it hangs down the table, when the length of hanging part is 1/3 of entire length the rope just begins to sli

2 Answers 4 Views

Assertion: The apparent weight of a person standing in a lift which moves upwards with uniform acceleration is always higher than his true weight. Rea

2 Answers 5 Views

Being a punctual man, the lift operator of a skyscraper hung an exact pendulum clock on the lift wall to know the end of the working day. The lift mov

2 Answers 9 Views

Equal weight of X (atomic weight = 36) and Y(atomic weight = 24) are reacted to form compound `X_(3)Y_(5)`, which of the following is/are correct?

2 Answers 5 Views

A uniform rope of length 12m and mass 12kg hangs vertically from a rigid support. A block of mass 2kg is attached to free end of the rope. A traverse

2 Answers 6 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Effeciency `cap%("out put")/("in put")xx100=("work done by load")/("work down by effort")xx100=(LX)/(EY)xx100`
Where given `E=250N, Y=5m, L=1200N, X=1m`
`cap%=(1200xx1)/(250xx5)xx100=96%`

5 views Answered 2023-02-05 15:29