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a book weighing 30kg is lifted 10m in 5.5 sec. how much power did it take? p=w/t

It takes 534.54 watts

Step-by-step explanation:

Given :

Mass of the book = 30kg

Distance  = 10m

Time  =  5.5 sec

To Find:

How much power did it take = ?

Solution:

Step 1:  calculate the work done

Work done  =

where

m =  mass

a = acceleration due to gravity

d =  distance

Substituting the values,

Work done  =

=> 2940 Nm

Step 2:  calculate the Power

We know that

Substituting the values,

Power = 534.54 watts

answer: give more info

step-by-step explanation:

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation: