Question

find the horse power of the engine required to lift 1 ton of coal per minute from a mine of 60m deep

Answer 1

Answer:

Mass(m) = 100000 kg = 10^5 kg

Height (h) = 360m

Acceleration due to gravity = 10 m/s^2

Time(t) = 1 hour = 3600 s

Then,

P.E = mgh

     = 10^5 * 10 * 360 J

Work done = P.E = 10^5 * 10 * 360 J

We know,

Power = Work done / Time

           = 10^5 x 10 x 360/3600

           = 10^5 watt.

Read more on Brainly.in - https://brainly.in/question/1466825#readmore

Explanation:

Answer 2

Answer:

The horse power of engine is 166 Watt

Explanation:

• The power an engine produces is referred to as "horsepower."
• It is determined by the amount of force required to move 550 pounds one foot in a second or 33,000 pounds one foot in a minute.
• 0.9863 horsepower or 4,500 kilogram-metres per minute is the metric horsepower. 

Given,

Mass($m$) = 1 ton = 1000 kg = $10^3$ $Kg$

Height ($h$) = 60$m$

Acceleration due to gravity = $10 m/s^2$

Time(t) = 1 hour = 3600 s

Then,

$P.E = mgh$

    = $10^3$ × 10 × 60 $m$

Work done = P.E = $10^3$ × 10 × 60 $m$
We know,

$Power = Work done / Time$

          = $10^3$ x 10 x 60/3600

          = 166 Watt

Therefore, the horse power of engine is $166$ Watt

To know more about Watt,visit:
https://brainly.in/question/7703934
To know more about Power,visit:
https://brainly.in/question/54131884

#SPJ2