A loaded penguin sled weighing 80 N rests on a plane inclined at angle 0= 20° to the horizontal (see the figure). Between the sled and the plane, the coefficient of static friction is 0.25, and the coefficient of kinetic friction is 0.15. A) What is the least magnitude of the force F, parallel to the plane, that will prevent the sled from slipping down the plane ? B) What is the minimum magnitude F that will start the sled moving up the plane ? C) What value of F is required to move the sled plane at constant velocity? dn the

A loaded penguin sled weighing 80 N rests on a plane inclined at angle 0= 20° to the horizontal (see the figure). Between the sled and the plane, the coefficient of static friction is 0.25, and the coefficient of kinetic friction is 0.15. A) What is the least magnitude of the force F, parallel to the plane, that will prevent the sled from slipping down the plane ? B) What is the minimum magnitude F that will start the sled moving up the plane ? C) What value of F is required to move the sled plane at constant velocity? dn the

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 47P: (a) What is the maximum frictional force in the knee joint of a person who supports 66.0 kg of her...

See similar textbooks

Related questions

Q: A 5.00 kg box sits at rest at the bottom of a ramp that is 8.00 m long and is inclined at 30 degrees…

Q: A 3.3 kg block is on an incline with a coefficient of static friction of 0.50. The angle that the…

A: Let m be the mass of the block, g be the acceleration due to gravity, θ be the angle of inclination,…

Q: You are sitting on the edge of a horizontal disk (for example, a playground merry-go-round) that has…

A: Given that:Radius, R=3 mm=3×10-3 mCoefficient of static friction, μs=0.430Let the mass of the person…

Q: A 10.0-kg box is at rest on a concrete floor. The coefficient of static friction between the box and…

A: mass, m = 10 kg static friction coefficient = 0.75 kinetic friction coefficient = 0.62 Force, F =…

Q: A person pushes horizontally with a force of 170. N on a 52.0 kg crate to move it across a level…

A: Given data: The horizontal force is F=170 N. The mass of crate is m=52.0 kg. The coefficient of…

Q: two masses are connected by a rope which passes over an ideal pulley as shown in the figure. Block A…

Q: A 26.0 kg box of textbooks rests on a loading ramp that makes an angle α with the horizontal. The…

A: Draw the free body diagram of the box resting on a loading ramp that makes an angle α with the…

Q: A block of mass m = 10.5 kg rests on an inclined plane with a coefficient of static of us = 0.055…

A: Given data:Mass of the block: Coefficient of static friction: Length of the inclined plane: Height…

Q: An early submersible craft for deep-sea exploration was raised and lowered by a cable from a ship.…

A: Tension in cable when craft is stationary T=6500 NDrag force due to water FD= 1800 N

Q: Problem-1: A 5 kg object is pushed on a horizontal surface with a force of 5 N. Coefficient of…

A: Given data *The mass of the object is m = 5 kg *The given force is F = 5 N *The coefficient of…

Q: A 200 kg crate rests on a floor with carpet. A tired worker pushes with a horizontal force of 600 N…

A: Given: The mass of the crate is, M=200 kg The worker pushes with a horizontal force, F=600 NF = 600…

Q: A 620 kg packing crate is being pulled up a 16 degrees-inclined plane by a rope. The rope is…

A: Given : Mass of crate: 620 kg Inclination of plane θ = 160 Coefficient of kinetic friction : μ=0.3…

Q: During a physics inquiry, you place a 0.250kg dynamics cart on a ramp inclined at 25.0 degrees to…

A: Given Acceleration , A = 1.50 m/s2 Coefficient of friction, u = 0.300 Mass of cart, M = 0.250 kg…

Q: The 118-lb force P is applied to the 250-lb crate, which is stationary before the force is applied.…

Q: A 12 N horizontal force F pushes a block weighing 5.3 N against a vertical wall (see the figure).…

Q: A crate of mass 15.0 kg rests on a level surface. If the coefficient of kinetic friction between the…

Concept explainers

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”

Question

A loaded penguin sled weighing 80 N rests on a plane
inclined at angle 0= 20° to the horizontal (see the
figure). Between the sled and the plane, the coefficient
of static friction is 0.25, and the coefficient of kinetic
friction is 0.15.
A) What is the least magnitude of the force F, parallel to
the plane, that will prevent the
sled from slipping down the plane ?
B) What is the minimum magnitude F that will start the
sled moving up the plane ?
C) What value of F is required to move the sled up the
plane at constant velocity?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

A 75.0-g arrow, fired at a speed of 110 m/s to the left, impacts a tree, which it penetrates to a depth of 12.5 cm before coming to a stop. Assuming the force of friction exerted by the tree is constant, what are the magnitude and direction of the friction force acting on the arrow?
A physics major is cooking breakfast en she notices that the frictional force between her steel spatula and Teflon trying pan is only 0.200 N. Knowing the coefficient of kinetic friction between the two materials, she quickly calculates the normal force. What is it?
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 a television commercial, a small, spherical bead of mass 4.00 g is released from rest at t=0in a bottle of liquid shampoo. The terminal speed is observed to be 2.00 cm/s. Find (a) the value of the constant bin the equation v=mgb(1ebt/m), and (b) the value of the resistive force when the bead reaches terminal speed.
Check Your Understanding A block of mass 1.0 kg rests on a horizontal surface. The frictional coefficients for the block and surface are s=0.50and k=0.40 . (a) What is the minimum horizontal force required to move the block? (b) What is the block’s acceleration when this force is applied?
The person in Figure P5.6 weighs 170 lb. As seen from the front, each light crutch makes an angle of 22.0 with the vertical. Half of the persons weight is supported by the crutches. The other half is supported by the vertical forces of the ground on the persons feet. Assuming that the person is moving with constant velocity and the force exerted by the ground on the crutches acts along the crutches, determine (a) the smallest possible coefficient of friction between crutches and ground and (b) the magnitude of the compression force in each crutch. Figure P5.6
If a single constant force acts on an object that moves on a straight line, the objects velocity is a linear function of time. The equation v = vi + at gives its velocity v as a function of time, where a is its constant acceleration. What if velocity is instead a linear function of position? Assume that as a particular object moves through a resistive medium, its speed decreases as described by the equation v = vi kx, where k is a constant coefficient and x is the position of the object. Find the law describing the total force acting on this object.
Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of the blocks, as shown below. The coefficient of kinetic friction between the blocks and the surface is 0.25. If each block has an acceleration of 2.0m/s2to the right, what is the magnitude Fof the applied force?
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?
The x and y coordinates of a 4.00-kg particle moving in the xy plane under the influence of a net force F are given by x = t4 6t and y = 4t2 + 1, with x and y in meters and t in seconds. What is the magnitude of the force F at t = 4.00 s?
Suppose you have a 120-kg wooden crate resting on a wood floor, with coefficient of static friction 0.500 between these wood surfaces. (a) What maximum force can you exert horizontally on the crate without moving it? (b) If you continue to exert this force once the crate starts to slip, what will its acceleration then be? The coefficient of sliding friction is known to be 0.300 for this situation.
A physics major is cooking breakfast when he notices that the frictional force between his steel spatula and his Teflon frying pan is only 0.200 N. Knowing the coefficient of kinetic friction between the two materials, he quickly calculates the normal force. What is it?