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Question
An ant drags a piece of sweet from the origin (0,0) to (3,4) in the co-ordinate axes. What is the work done by the ant if it applies a force of 1 N (1 unit = 1 metre)?
An ant drags a piece of sweet from the origin (0,0) to (3,4) in the co-ordinate axes. What is the work done by the ant if it applies a force of 1 N (1 unit = 1 metre)?
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Solution
The correct option is C 5 J
Displacement of the sweet from (0,0) to (3,4) is equal to its final distance from the origin.
Displacement =√(3−0)2+(4−0)2=√9+16=5 m
Force applied by the ant is 1 N.
We know, Work done = force x displacement
Work done by the ant = 5 m x 1 N= 5 Nm = 5 J
5 J
Displacement of the sweet from (0,0) to (3,4) is equal to its final distance from the origin.
Displacement =√(3−0)2+(4−0)2=√9+16=5 m
Force applied by the ant is 1 N.
We know, Work done = force x displacement
Work done by the ant = 5 m x 1 N= 5 Nm = 5 J
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