In a factor it is desired to lift 2000 k...

In a factor it is desired to lift 2000 kg of metal through a distance of 12 m in 1 minute. Find the minimum horsepower of the engine to be used.

Text Solution

Verified by Experts

The correct Answer is:

`m=2000kg, S=12m, t=1min=60sec
So, work `=W=f costheta=mgscos0^0`
`[0=theta^0,minimum work]`
`2000xx10xx12`
`240000j`
So, Power `=p=W/t`
`24000/6=4000watt`
`h.p=4000/746=5.3hp`

Topper's Solved these Questions

WORK AND ENERGY
HC VERMA|Exercise Objective -2|2 Videos
WAVE MOTION AND WAVES ON A STRING
HC VERMA|Exercise Exercises|57 Videos

Similar Questions

Explore conceptually related problems

In a factory it is desired to lift 746 kg of metal through a distance of 60 m is 1 min. The minimum horsepower of the engine to be used will be

A body travels a distance of 500 m in 10 minute. Find out the speed of the body in km h^(-1) .

An engine pumps 800 kg of water through height of 10 m in 80 s. Find the power of the engine if its efficiency is 75%

An elevator weighing 500 kg is to be lifted up at a constant velociyt of 0.20 m/s. What would be the minimum horsepower of the motor to be used?

A man carries a load of 5 kg on his head through a distance of 10 m. the minimum amount of work is done when he

A lift weighing 250 kg is to be lifted up at a constant velocity of 0.20 m. What would be the minimum horse power of the motor to be used ?

A trolley is pushed along a road with a force of 400 N through a distance of 60 m in 1 minute. Calculate the power developed.

In unloading grain from the hold of a ship, an elevator lifts the grian through a distance of 12 m. Grain is discharged at the top of the elevator at a rate of 2 kg each second and the discharge speed of each of grain particle is 3 ms^(-1) . Find the minimum horsepower of the motor that can elevate grain in this way. (Take g=10 ms^(-2) )

HC VERMA-WORK AND ENERGY-Exercises

A water pump lifts water from a level 10 m below the ground. Water is ...
Text Solution
|
An unruly demonstrator lifts a stone of mass 200 g from the ground and...
Text Solution
|
In a factor it is desired to lift 2000 kg of metal through a distance ...
Text Solution
|
A scooter company gives the following specifications about its product...
Text Solution
|
A block of mass 30.0 kg is being brought down by a chain. If the block...
Text Solution
|
The heavier bock in an atwood machine has a mass twice that of the lig...
Text Solution
|
The two blocks in an Atwood machine have masses 2.0 kg and 3.0 kg. Fin...
Text Solution
|
Consider the situatioin shown in figure. The system is released from r...
Text Solution
|
A block of mass 100g is moved with a speed of 5.0 m/s at the highest p...
Text Solution
|
A car weighing 1400 kg is moving at speed of 54 km/h up a hill when t...
Text Solution
|
small block of mass 200 g is kept at the top of a frictioinless inclin...
Text Solution
|
In a children's park, there si a slide which has a total length of 10 ...
Text Solution
|
Figure shows a particle slideing on a frictionles track which terminat...
Text Solution
|
A block weighing 10 N tavels down a smooth curved track AB joined to a...
Text Solution
|
A uniform chain of mass m and length l overhangs a table with its two ...
Text Solution
|
AS uniform chain of length L and mass M overhangs a horizontal table w...
Text Solution
|
A block f mas 1 kg is placed at the point A of a rough track shown in ...
Text Solution
|
A block of mass 5.0 kg is suspended from the end of a vertical spring ...
Text Solution
|
A block o fmass 250 is g is kept on a vertical spring of spring consta...
Text Solution
|
Figure shows a spring fixed at the bottom end of an incline of inclina...
Text Solution
|