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12:3 Step 1 Expression for work done by the frictional force on an object is, Here,...
Step 1 Expression for work done by the frictional force on an object is, Here, k...
Step 1 Expression for work done by the frictional force on an object is, Here, k is coefficient of kinetic friction, m is mass of object, g is gravitational acceleration, and d is displacement, Work done is path dependent parameter. In the given case, the person put the box at starting position. Hence, the displacement of the box is zero. Therefore, the work done by the person on the box 1S Zero Thus, the correct option is Concept Check 6.1...
1- How much work is done by the horizontal force Fp = 150N on the 18-kg...
1- How much work is done by the horizontal force Fp = 150N on the 18-kg block when the force pushes the block 5.0 m up along the 32° frictionless incline? (b) How much work is done by the gravitational force on the block during this displacement? (c) How much work is done by the normal force? (d) What is the speed of the block (assume that it is zero initially) after this displacement? [Hint: Work-energy involves net work done.]...
3. A worker pushes constantly downward on a box of mass 43.0 kg with a force...
3. A worker pushes constantly downward on a box of mass 43.0 kg with a force of 230 N at an angle of 26.0° from the horizontal. The box starts from rest and moves across a level floor for a distance of 3.66 m. The coefficient of kinetic friction is -0.384 230 N 43.66 m a) Show that the normal force on the box is 522 N. b) Find the force of friction on the box. c) What is the...
A horizontal force of magnitude 32.1 N pushes a block of mass 3.91 kg across a...
A horizontal force of magnitude 32.1 N pushes a block of mass 3.91 kg across a floor where the coefficient of kinetic friction is 0.579. (a) How much work is done by that applied force on the block-floor system when the block slides through a displacement of 2.99 m across the floor? (b) During that displacement, the thermal energy of the block increases by 33.6 J. What is the increase in thermal energy of the floor? (c) What is the...
A horizontal force of magnitude 41.6 N pushes a block of mass 3.86 kg across a...
A horizontal force of magnitude 41.6 N pushes a block of mass 3.86 kg across a floor where the coefficient of kinetic friction is 0.591. (a) How much work is done by that applied force on the block-floor system when the block slides through a displacement of 3.38 m across the floor? (b) During that displacement, the thermal energy of the block increases by 37.8 J. What is the increase in thermal energy of the floor? (c) What is the...
A horizontal force of magnitude 39.5 N pushes a block of mass 4.05 kg a distance...
A horizontal force of magnitude 39.5 N pushes a block of mass 4.05 kg a distance of 3.00 m across a floor, where the coefficient of kinetic friction is 0.600. (a) How much work is done by that applied force on the block-floor system? (b) During that displacement, the thermal energy of the block increases by 44.0 J. What is the increase in thermal energy of the floor? (c) What is the increase in the kinetic energy of the block?
ox of mass 11kg is dragged forward by a force that has a magnitude of 24N...
ox of mass 11kg is dragged forward by a force that has a magnitude of 24N and is angled a of the force b). If the box is pulled for 6m horizontally, what is the work done by this force? c). If the coefficient of kinetic friction of the floor is 0.13 what is the work done by the frictional force as the box is pulled for 6m? 2. A b t 320 above the horizontal. a). What is the...
A horizontal force of magnitude 40.3 N pushes a block of mass 3.61 kg across a...
A horizontal force of magnitude 40.3 N pushes a block of mass 3.61 kg across a floor where the coefficient of kinetic friction is 0.589. (a) How much work is done by that applied force on the block-floor system when the block slides through a displacement of 2.98 m across the floor? (b) During that displacement, the thermal energy of the block increases by 37.3 J. What is the increase in thermal energy of the floor? (c) What is the...
Work Done by Normal Force Consider an object sliding along the surface shown below. Choose and...
Work Done by Normal Force Consider an object sliding along the surface shown below. Choose and show a direction of motion for the object and show the direction of the normal force. Use this figure to do the scalar product given below. oM bns av W, n-s Is the work done by the normal force exerted between two colliding objects also zero? Explain. Work Done by Weight Unlike the normal and kinetic friction forces, the direction of an object's motion...
MULTIPLE CHOICE, Show your work in the space provided, Circle the correct answer 1. An object...
MULTIPLE CHOICE, Show your work in the space provided, Circle the correct answer 1. An object is moving with constant non-zero velocity. Which of the following statements about it must be true? As shown in the figure, a woman is straining to lift a large crate, but without success because it is too heavy. We denote the forces on the crate as follows: P is the magnitude of the upward force being exerted on the crate by the person, C...
Step 1 Expression for work done by the frictional force on an object is, Here, k is coefficient of kinetic friction, m is mass of object, g is gravitational acceleration, and d is displacement, Work done is path dependent parameter. In the given case, the person put the box at starting position. Hence, the displacement of the box is zero. Therefore, the work done by the person on the box 1S Zero Thus, the correct option is Concept Check 6.1...
3. A worker pushes constantly downward on a box of mass 43.0 kg with a force of 230 N at an angle of 26.0° from the horizontal. The box starts from rest and moves across a level floor for a distance of 3.66 m. The coefficient of kinetic friction is -0.384 230 N 43.66 m a) Show that the normal force on the box is 522 N. b) Find the force of friction on the box. c) What is the...
A horizontal force of magnitude 39.5 N pushes a block of mass 4.05 kg a distance of 3.00 m across a floor, where the coefficient of kinetic friction is 0.600. (a) How much work is done by that applied force on the block-floor system? (b) During that displacement, the thermal energy of the block increases by 44.0 J. What is the increase in thermal energy of the floor? (c) What is the increase in the kinetic energy of the block?
ox of mass 11kg is dragged forward by a force that has a magnitude of 24N and is angled a of the force b). If the box is pulled for 6m horizontally, what is the work done by this force? c). If the coefficient of kinetic friction of the floor is 0.13 what is the work done by the frictional force as the box is pulled for 6m? 2. A b t 320 above the horizontal. a). What is the...
Work Done by Normal Force Consider an object sliding along the surface shown below. Choose and show a direction of motion for the object and show the direction of the normal force. Use this figure to do the scalar product given below. oM bns av W, n-s Is the work done by the normal force exerted between two colliding objects also zero? Explain. Work Done by Weight Unlike the normal and kinetic friction forces, the direction of an object's motion...
MULTIPLE CHOICE, Show your work in the space provided, Circle the correct answer 1. An object is moving with constant non-zero velocity. Which of the following statements about it must be true? As shown in the figure, a woman is straining to lift a large crate, but without success because it is too heavy. We denote the forces on the crate as follows: P is the magnitude of the upward force being exerted on the crate by the person, C...
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