Work = Area of triangle 1 + area of rectangle + area of triangle 2 Determine the net work based on figure below. W = F s = (14 Newton)(8 meters) = 112 Newton meters = 112 Joule In another hand, the friction force has the opposite direction as the displacement of the object so that the friction force does a negative work. The push force has the same direction as the displacement of the object so that the push force does a positive work. There are two forces that act on an object, push force (F) and friction force (F fric ). Determine the net work of move the object as far as 8 meters. An object is pushed by a horizontal force of 14 Newton on a rough floor with the friction force of 10 Newton. In another hand, the friction force has the opposite direction with a displacement of the object so that the friction force does a negative work. The push force has the same direction as the displacement of the object because the push force does a positive work. There are two forces that act on the object, the push force (F) and friction force (F fric ). Determine the work done by force to move the object as far as 6 meters. Someone push an object on the floor with force of 350 N. If the person pushes wheelchair for two times circular motion then the person and wheelchair return to the original position, so the displacement of the person is zero.ġ4. Determine the work done by Andrew for two times circular motion. Andrew pushes an object with force of 20 N so the object moves in circular motion with a radius of 7 meters.
The activities below w hich do not do work is …ī ased on the above formula, work done by force and there is a displacement.ġ 3. Net force ( ΣF) = 40 N + 10 N – 25 N = 25 Newton ( rightward )ġ2. Based on figure below, if work done by net force is 375 Joule, determine object’s displacement. What is the work done on the car?ĭisplacement (s) = 1000 cm = 1000/100 meters = 10 meters
#Workdone on a mass moving on rough surface driver#
A driver pulling a car so the car moves as far as 1000 cm. Net force (F) = 50 Newton + 70 Newton = 120 Newton Forces exerted by Tom and Jerry are 50 N and 70 N. Work done by Tom and Jerry so the car can move as far as 4 meters. Along the roads, the coefficient of kinetic friction between block and ground is 0.12. He can go along the roads by travelling 295 meters east, then 89 meters north. He needs to move a giant block of stone, of mass 12 metric tons, from the docks to the temple grounds. Homework Statement: Hetsut is the foreman of a construction project in ancient Egypt. How much work would the team have to do on the block to move it from rest at the docks to a position at rest at the temple grounds, if they go straight across the fields? How much work would the team have to do on the block to move it from rest at the docks to a position at rest at the temple grounds, if they go along the roads? "Excuse me, honored foreman," says one of the workmen, "but would it be better to take a short cut along a direct route, across the fields?" The foreman thinks for a moment - he knows that the coefficient of kinetic friction between stone and dirt in the fields is higher, about 0.22. Hetsut is the foreman of a construction project in ancient Egypt.
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