The force acting on a particle varies as shown in Figure 18 P 7.14. Find the work done by the force on the particle as it moves (a) from x= 0 to x= 8.00 m, (b) from x = 8.00 m to x = 10.0 m, and (c) from x = 0 to x = 10.0 m.
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The force acting on a particle varies as shown in Figure 18
P 7.14. Find the work done by the force on the particle
as it moves (a) from x= 0 to x= 8.00 m, (b) from x =
8.00 m to x = 10.0 m, and (c) from x = 0 to x = 10.0 m.
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- In the figure, a 0.25 kg block of cheese lies on the floor of a 900 kg elevator cab that is being pulled upward by a cable through distance d₁ = 2.5 m and then through distance d₂ = 10.2 m. (a) Through d₁, if the normal force on the block from the floor has constant magnitude FN = 3.04 N, how much work is done on the cab by the force from the cable? (b) Through d2, if the work done on the cab by the (constant) force from the cable is 91.30 kJ, what is the magnitude of FN?A particle is subject to a force Fx that varies with position as shown in the following figure. Find the work done by the force on the particle as it moves from: x = 0 to x = 4.00 m.; x = 5.00 m to x = 7.00 m.; x = 14.0 m to x = 15.0 m.; and what is the total work done by the force over the distance x = 0 to x = 15.0 m?The force acting on a particle varies as shown in the figure below. Fx (N) 6 4 2 x (m) 2 4 6 8 10 (a) Find the work done by the force on the particle as it moves from x = 0 m to x = 8 m. J (b) Find the work done by the force on the particle as it moves from x = 8 m to x = 12 m. (c) Find the work done by the force on the particle as it moves from x = 0 m to x = 12 m. ]
- A dock worker pushes a m = 3.20 kg block a distance d = 2.00 m along the floor by a constant force of magnitude F = 16.0 N directed at an angle 8 = 22.0° below the horizontal as shown in the figure. Assume the floor is frictionless. (Enter your answers in joules.) m (a) Determine the work done on the block by the applied force (the force on the block exerted by the dock worker). J (b) Determine the work done on the block by the normal force exerted by the floor. J (c) Determine the work done on the block by the gravitational force. J (d) Determine the work done by the net force on the ock. JA force F = 20.0 Newtons at a 20.0 degree angle with the X axis. This force is applied over a distance of 20.0 meters along the X axis. What work is done by the Force?A block of mass m = 2.50 kg is pushed d = 2.70 m along a frictionless horizontal table by a constant applied force of magnitude F = 18.0 directed at an angle ? = 25.0° below the horizontal (a) Determine the work done by the applied force.= J (b) Determine the work done by the normal force exerted by the table.= J (c) Determine the work done by the force of gravity.= J (d) Determine the work done by the net force on the block.= J
- A particle is subject to a force Fx that varies with position as shown. Find the work done by the force on the particle as it moves (a) from x = 0 to x = 5.00 m, (b) from x = 5.00 m to x = 10.0 m, and (c) from x = 10.0 m to x = 15.0 m. (d) What is the total work done by the force over the distance x = 0 to x = 15.0 m?A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (3.70 m, 4.78 m) while a constant force acts on it. The force has magnitude 2.08 N and is directed at a counterclockwise angle of 100° from the positive direction of the x axis. How much work is done by the force on the coin during the displacement?A 24.5 kg child pulls a 3.75 kg toboggan up a hill inclined at 25.7° to the horizontal. The vertical height of the hill is 30.3 m. Friction is negligible. (a) Determine how much work the child must do on the toboggan to pull it at a constant velocity up the hill. (b) Now suppose that the hill is inclined at an angle of 19.6° but the vertical height is still 30.3 m. What conclusion can you make?
- 14. A coin slides over a frictionless plane and across an y coordinate system from the origin to a point with ry coordinates (3.0 m, 4.0 m) while a constant force acts on it. The force has magnitude 2.0N and is directed at a counterclockwise angle of 100 from the positive direction of the r axis. How much work is done by the force on the coin during the displacement?A block of mass m = 2.80 kg is pushed a distance d = 5.40 m along a frictionless, horizontal table by a constant applied force of magnitude F = 16.0 N directed at an angle θ = 27.0° below the horizontal as shown in the figure below. (a) Determine the work done on the block by the applied force. J(b) Determine the work done on the block by the normal force exerted by the table. J(c) Determine the work done on the block by the gravitational force. J(d) Determine the work done by the net force on the block. JThe skateboarder in the figure is coasting down a ramp, and there are three forces acting on her: her weight W (magnitude = 679 N), a frictional force (magnitude = 144N) that opposes her motion, and a normal force FN (magnitude = 630 N). Determine the net work done (a) by the weight W, (b) by the frictional force 7, and (c) by the normal force FN when she coasts for a distance of 11.1 m. 1 love 22.0° (a) FN 0-68.0° W 0 = 180.0° Weight component FN e=90.0° (b)