A weight lifter lifts a 60 kg barbbell to a vertical height of 2 m. How much wor...

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September 2022 1 6 Report

A weight lifter lifts a 60 kg barbbell to a vertical height of 2 m. How much work is done by the weight lifter? (Show your solution.)

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Tokamak

$\tt{\huge{\blue{Explanation:}}}$

The work done by an object exerting a force F at a distance d is given by

$\boxed{W = Fd}$

where:

W = work

F = force

d = distance

$\tt{\huge{\red{Solution:}}}$

Solving for F

F = weight = mg

F = (60 kg)(9.8 m/s²)

F = 588 N

Solving for W

W = Fd

W = (588 N)(2 m)

$\boxed{W = \text{1,176 J}}$

Therefore, the work done is 1,176 J.

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Answers & Comments

Solving for F

Solving for W

Add an Answer

In order to not be late in his physics class, Joe hurriedly climbed the 5 m stai...

Alex pulls on s 15-kg crate with a force of 35 N at an angle of 40 degrees for t...

A cat knocks a 0.01kg toy mouse across the floor with 2N of force. If the toy tr...

III. Name the type of special products (e.g, square of a binomial, product of th...

III. Name the type of special products (e.g, square of a binomial, product of th...

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