A man carries a 10 kg sack of groceries in his arms with a force of 50 N as he walks forward a distance of 10 m. How much work has he done?

0 J

50 J

100 J

500 J

Question

A man carries a 10 kg sack of groceries in his arms with a force of 50 N as he walks forward a distance of 10 m. How much work has he done?

        0 J

       50 J

       100 J

       500 J

anonymous · Answer

force * distance = work

anonymous · Answer

thats right.. however.. that formula only holds good as long as the force and distance are in the same direction.. a more general case is

$$W = F.x $$
or  
$$W = Fx \cos (\theta ) $$

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So now can you get a clue.. for your problem?