A 200 kg wagon with wheels so there is only a little friction is moved 10...
A 200 kg wagon with wheels so there is only a little friction is moved 10 m across a smooth floor by a force making a downward angle with the floor. The horizontal component of this force is a 5 N force acting parallel to the floor in the direction of motion and the vertical component of the force is a 10 N force acting perpendicular to the floor. The work done is?
Homework Answers
Work done = force × displacement
Work done = 5 × 10
Work done = 50 Joule
Work done is 50 joule
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A 200 kg wagon with wheels so there is only a little friction is
moved 10...
A box is moved 10 m across by a floor a force or 25 N acting...
A box is moved 10 m across by a floor a force or 25 N acting along the direction of motion. The work done by the force is __________ A painter of mass 70 kg climbs 3.0 m up a ladder. The painter's potential energy has increased by ____________
1. A 200 kg crate is pushed across a floor by a force F = 250...
1. A 200 kg crate is pushed across a floor by a force F = 250 newtons at an angle 0 = 53 below horizontal. The floor exerts a 50 newton frictional force on the crate opposing the motion. a. Draw a labeled free body diagram showing the forces acting on the trunk. (+2) b. Below, write Newtons's 2nd Law (F = må) in the horizontal (x) and vertical (v) direction, using the names of the forces from your free...
Problem 04 ed A 244-kg crate is being above the horizontal. The coefficient of kinetic friction...
Problem 04 ed A 244-kg crate is being above the horizontal. The coefficient of kinetic friction is 0.2. If the crate is moved a distance of 45 m calculate across a horizontal floor by a force P that makes an angle 8-32.5 P 150ON 244 Kg [Hint draw a free body diagram and find the friction force] a) the work done by the net force. b) If the block was initially at rest compute its speed upon reaching 45 m
13. A man pulls a 75 kg box at a constant speed across the floor. He...
13. A man pulls a 75 kg box at a constant speed across the floor. He applies a 200 N force at an angle of30°. Determine the magnitudes and directions of the horizontal and vertical components of the pull force. 30° 14. A girl pushes an 8 kg sled with a force of 65N downward at an angle of 35o below the horizontal on a frictionless surface. Determine the vertical and horizontal components of the push force
A warehouse worker is pushing a 90.0 kg crate with a horizontal force of 288 N...
A warehouse worker is pushing a 90.0 kg crate with a horizontal force of 288 N at a speed of v = 0.850 m/s across the warehouse floor. He encounters a rough horizontal section of the floor that is 0.75 m long and where the coefficient of kinetic friction between the crate and floor is 0.357. (a) Determine the magnitude and direction of the net force acting on the crate while it is pushed over the rough section of the...
A 30-kg box is at rest on a horizontal floor with friction coefficientsμs= 0.65 (static) and...
A 30-kg box is at rest on a horizontal floor with friction coefficientsμs= 0.65 (static) and μk= 0.55 (kinetic). You push on the box HORIZONTALLY (parallel to the floor) with varying applied force. For each applied force below, find the magnitude of the friction force exerted by the floor on the box(in Newtons), and state whether the friction is static or kinetic. (a) Applied force 100 N. (b) Applied force 150 N. (c) Applied force 190 N. (d) Applied force...
1. Describe the difference between static friction and kinetic friction. 2. You have a 1.20 kg...
1. Describe the difference between static friction and kinetic friction. 2. You have a 1.20 kg cart resting on various surfaces. For each of the following scenarios, find the normal force acting on the cart (in standard units): a. The cart on a horizontal floor b. The cart carrying a load of 750 g on a horizontal floor c. The cart on an incline raised 15° above the horizontal d. The cart on a horizontal floor with a string attached...
A 3.00-kg block is moved up a 37-degree incline by a constant horizontal force of 40.0...
A 3.00-kg block is moved up a 37-degree incline by a constant horizontal force of 40.0 N. The coefficient of kinetic friction is 0.10, and the block is displaced 2.00 m up the incline. Note: The applied force is not parallel to the incline. Calculate the work done by gravity and the work done by friction.
2. A 40.0 kg wagon is towed up a hill inclined at 17.5° with respect to...
2. A 40.0 kg wagon is towed up a hill inclined at 17.5° with respect to the horizontal, The tow rope is parallel to the incline and has a tension of 542 N. Assume that the wagon starts from rest at the bottom of the hill, and neglect friction. (a) How fast is the wagon going after moving 73 m up the hill? (b) What is the magnitude of the normal force acting on the wagon? 3. A 5.00 kg...
(1) A 4m ladder has mass m= 10 kg. We assume that its centre of mass...
(1) A 4m ladder has mass m= 10 kg. We assume that its centre of mass is half-way along its length. The ladder is leaning against a wall at an angle of 30° from the vertical, as shown in the figure. Suppose that the wall is frictionless smooth and slippery), and that the coefficient of static friction between the feet of the ladder and the floor is H. =0.6. Take the acceleration due to gravity to be g=10m/s" directed vertically...
A box is moved 10 m across by a floor a force or 25 N acting along the direction of motion. The work done by the force is __________ A painter of mass 70 kg climbs 3.0 m up a ladder. The painter's potential energy has increased by ____________
1. A 200 kg crate is pushed across a floor by a force F = 250 newtons at an angle 0 = 53 below horizontal. The floor exerts a 50 newton frictional force on the crate opposing the motion. a. Draw a labeled free body diagram showing the forces acting on the trunk. (+2) b. Below, write Newtons's 2nd Law (F = må) in the horizontal (x) and vertical (v) direction, using the names of the forces from your free...
Problem 04 ed A 244-kg crate is being above the horizontal. The coefficient of kinetic friction is 0.2. If the crate is moved a distance of 45 m calculate across a horizontal floor by a force P that makes an angle 8-32.5 P 150ON 244 Kg [Hint draw a free body diagram and find the friction force] a) the work done by the net force. b) If the block was initially at rest compute its speed upon reaching 45 m
13. A man pulls a 75 kg box at a constant speed across the floor. He applies a 200 N force at an angle of30°. Determine the magnitudes and directions of the horizontal and vertical components of the pull force. 30° 14. A girl pushes an 8 kg sled with a force of 65N downward at an angle of 35o below the horizontal on a frictionless surface. Determine the vertical and horizontal components of the push force
1. Describe the difference between static friction and kinetic friction. 2. You have a 1.20 kg cart resting on various surfaces. For each of the following scenarios, find the normal force acting on the cart (in standard units): a. The cart on a horizontal floor b. The cart carrying a load of 750 g on a horizontal floor c. The cart on an incline raised 15° above the horizontal d. The cart on a horizontal floor with a string attached...
2. A 40.0 kg wagon is towed up a hill inclined at 17.5° with respect to the horizontal, The tow rope is parallel to the incline and has a tension of 542 N. Assume that the wagon starts from rest at the bottom of the hill, and neglect friction. (a) How fast is the wagon going after moving 73 m up the hill? (b) What is the magnitude of the normal force acting on the wagon? 3. A 5.00 kg...
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