Asked by Bishketta

If a 2.0-kilogram mass is raised 0.050 meter vertically, the work done on the mass is approximately

(1) 0.10 J
(2) 0.98 J
(3) 9.8 J
(4) 40. J
Answered by bobpursley
Isnt work done equal to <b>weight</b> times distance?
Answered by Bishketta
yes. the book says work = force times direction of displacemnt. but im confused about the joules unit. According to this review book, 1 newton * meter = 1 kilogram * meter squared/second squred = 1 joule. Would it be 0.1 joules? Or is it 0.1 newton*meters and i would have to convert it?
Answered by bobpursley
Think about the units of work

work=force*distance
joule=newton*meter

a joule is N-m
Answered by Bishketta
ok thanks a lot. I appreciate it =)
Answered by 13 years later
So what is the answer!?
Answered by 13 years later 2
The answer is 1
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