Work is being done when we apply a force on an object and the object moves. If the movement in the direction of force is zero then the work done becomes zero.
Solve the following problems using the formula for Work, Force, and Distance
Question 4 (1 point)
Use the above formula to calculte work done.
Calculate the amount of work done by the force in moving the object through a distance of 9 m if an object is horizontally dragged across the surface by a 130 N force acting parallel to the surface.
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Answer:
1170 joule
Explanation:
Workdone is equal to dot product between force and distance.
W = F.S = FScosø
Where F = force and S = distance and ø = angle between them
Since object is dragged horizontally and force to parallel to the surface which means force is as well horizontal
so ø = 0°
Hence,
W = FS cos0°
= 130×9×1 = 1170 joule
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