Which of the following would have a significant impact on the m Pick all correct answers - there is more than one. Your answer: the length and width of the shoe the material that the bottom of the shoe the weight of the person wearing the shoe what floor the person is on (1t floor or 2nd floor, not the ma

Which of the following would have a significant impact on the m Pick all correct answers - there is more than one. Your answer: the length and width of the shoe the material that the bottom of the shoe the weight of the person wearing the shoe what floor the person is on (1t floor or 2nd floor, not the ma

Name: Which of the following would have a significant impact on the maximum
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Description: Which of the following would have a significant impact on the maximum force of friction between the bottom of a person's shoe and the floor? (Assume that the floor is one solid piece and that it is dry.)Pick all correct answers -there is more than o

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter6: Applications Of Newton’s Laws Of Motion

Section: Chapter Questions

Problem 11PQ: In Problem 10, the mass of the sign is 25.4 kg, and the mass of the potted plant is 66.7 kg. a....

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Jamal and Dayo are lifting a large chest, weighing 207 lb, by using the two rope handles attached to either side. As they lift and hold it up so that it is motionless, each handle makes a different angle with respect to the vertical side of the chest (Fig. P5.76). If the angle between Jamals handle and the vertical side is 25.0 and the angle between Dayos handle and the vertical side of the chest is 30.0, what are the tensions in each handle? FIGURE P5.76
In Problem 10, the mass of the sign is 25.4 kg, and the mass of the potted plant is 66.7 kg. a. Assuming the objects are in equilibrium, determine the magnitude of the static friction force experienced by the potted plant. b. What is the maximum value of the static friction force if the coefficient of static friction between the pot and the roof is 0.572?
The board sandwiched between two other boards in Figure P5.97 weighs 95.5 N. If the coefficient of static friction between the boards is 0.663, what must be the magnitude of the compression forces (assumed horizontal) acting on both sides of the center board to keep it from slipping?
A crate of mass 100.0 kg rests on a rough surface inclined at an angle of 37.0with the horizontal. A massless rope to which a force can be applied parallel to the surface is attached to the crate and leads to the top of the incline. In its present state, the crate is just ready to slip and start to move down the plane. The coefficient of friction is 80of that for the static case. (a) What is the coefficient of static friction? (b) What is the maximum force that can be applied upward along the plane on the rope and not move the block? (c) With a slightly greater applied force, the block will slide up the plane. Once it begins to move, what is its acceleration and what reduced force is necessary to keep it moving upward at constant speed? (d) If the block is given a slight nudge to get it started down the plane, what will be its acceleration in that direction? (e) Once the block begins to slide downward, what upward force on the rope is required to keep the block from accelerating downward?
How much sand (in kgs) is needed to be added into the can in order to overcome friction from the table? The box and the can weighs 3.5 kg and 0.5 kg, respectively and the coefficient of static friction between the box and the table is 0.35. Assume the pulley is frictionless.
Logs weighing 1.3 kg and 2.2 kg lie on a flat surface and are connected by a rope that breaks at a force of 20 N. The coefficient of friction between the lighter log and the base is 0.50, and between the heavier log and the base 0.30. With what maximum force can we pull the lighter log so that the string does not break?
Problem-solving questions At the back of the leg, two muscles pull on the Achilles tendon to create an upward force. Estimate the nett force if cach muscle has a diameter of about 5.0 mm and exerts a force in a direction of 25° from the vertical. (Use a force per unit area of muscle of 7x10° N/m²). An 18 kg penguin slides down an iceberg at an angle of 15° to the horizontal. Friction between the penguin's body and the ice surface is negligible. Determine the normal force acting on the penguin and its acceleration down the iceberg. A manufacturer of children's slides does some tests and discovers that the slope of a slippery slide must be at least 25° to the horizontal for the slide to work. The child involved in doing the testing weighs 35 kg. What is the coefficient of static friction between the child and the slide? A car drives onto a section of the road which is covered in ice. The driver attempts to stop by hitting the brakes but the wheels lock and the car skids for another 60 m.…
If the coefficient of static friction between all surfaces in contact is µg = 0.3 and a determine force P that must be applied to wedge A in order to lift the block weighing 500 N. The weight of wedge A is negligible compared to the block. B P
A man standing on the ground exerts a horizontal force of 439 N when pushing on his friend standing on the skateboard.If the friend’s mass is 70 kg, the skateboard’s mass is 2 kg, and the coefficient of static friction between the friend’sfeet and the skateboard is 0.8, calculate the magnitude of the force of static friction between the skateboard and thefriend’s feet. You can assume that the wheels on the skateboard are good enough so that you can neglect frictionbetween the wheels and the ground.
A box weighing 50 N rests on a horizontal surface. A person pulls with a force of 10N to the right and it does not move. In order for you to move, you need another person who pulls vertically. What is the minimum force that the other person needs to exert in order for it to move? Coefficient of static friction = 0.4
480 250 D B. 360 130 320 360 450 Dimensions in mm Problem 3 A rectangular plate is supported by three cables that the tension in the cable AB is 404 N, determine the components of the force exerted on the plate at B, C, and D. as shown. Knowing
A 1.6 kg book is pressed against a wall with a perpendicular force. The coefficient of friction is 0.25. What minimum force must be applied to the book so that is doesn’t slide down the wall.