Concept explainers
How much power is required to raise a 100-kg crate a vertical distance of 2m in a time of 4s ?
(a)200W
(b)500W
(c)800W
(d)2000W
The correct option for the statement "How much power is required to raise a crate a vertical distance of 2m in a time of 4s?".
Answer to Problem 2RAT
The correct option for the statement "How much power is required to raise a crate a vertical distance of 2m in a time of 4s ?" is option (b).
Explanation of Solution
Given Info: The mass of the crate is 100-kg , the movement of the crate is 2m and time for the movement is 4s .
Write the expression for power to the book.
Here,
p is the power to move the book
mis the mass to move the crate
gis the gravitational acceleration
his the movement of the crate
tis the time for the movement of the crate
Substitute 1N for F, 2m for d and 1s for t in the above expression to get p .
Conclusion:
Therefore, the correct option for the statement "How much power is required to raise a 100-kg crate a vertical distance of 2m in a time of 4s ?" is option (b).
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