Chapter 6, Problem 2RAT

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

To determine

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.

$P=\frac{m\cdot g\cdot h}{t}$

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 .

$P=\frac{m\cdot g\cdot h}{t}$

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).