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

Question

(1) 0.10 J
(2) 0.98 J
(3) 9.8 J
(4) 40. J

bobpursley · Answer

Isnt work done equal to weight times distance?

Bishketta · Answer

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?

bobpursley · Answer

Think about the units of work work=force*distance joule=newton*meter a joule is N-m

Bishketta · Answer

ok thanks a lot. I appreciate it =)

13 years later · Answer

So what is the answer!?

13 years later 2 · Answer

The answer is 1