A63 kg object needs to be lifted 7 in a matter of 5 seconds approximately how much horsepowers is required to achieve this task

Skip to content# A63 kg object needs to be lifted 7 in a matter of 5 seconds approximately how much horsepowers is required to achieve this

Physics ##
Comments (3) on “A63 kg object needs to be lifted 7 in a matter of 5 seconds approximately how much horsepowers is required to achieve this”

### Leave a Reply Cancel reply

A63 kg object needs to be lifted 7 in a matter of 5 seconds approximately how much horsepowers is required to achieve this task

does anyone know or what?

We need to lift an object from a point A to another point B. So, we have these variables:

For the object:

m = 63Kg

Height:

h = 7in

Time:

t = 5s

Horsepower (hp) is a unit of measurement of power. So, the term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses. So:

[tex]P = \frac{W}{t}[/tex]

So, we need to calculate the work W. A force is said to do work if, when acting, there is a displacement of the point of application in the direction of the force. In a mathematical language:

[tex]W=Fd[/tex]

Given that the displacement is vertically, this force will be:

[tex]F=mg=(63kg)(9.8m/s^{2})=617.4N[/tex]

We need to convert the unit in into m, so:

1in = 0.0254m

Then:

7in = 0.1778m

Therefore, as the displacement d = h:

[tex]W = (617.4)(0.1778)=109.77(J)[/tex]

Finally:

[tex]P= \frac{109.77}{5}=21.95W[/tex]

The result is expressed in Watts, so we need to convert it into hp, so:

1hp = 746W

[tex]P= 21.95W(\frac{1hp}{746W})=0.03hp[/tex]

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.

mark brainliest i am trying to get to the next level!

i will be your freind and say