A heavy box of mass M is found at rest on an inclined loading ramp as indicated in the figure.The ramp is placed between the ground and the back of a pickup truck so that it is inclined at anangle 0 above the horizontal. The coefficients of kinetic and static friction between the woodenbox and the aluminium ramp are µk and µ,, respectively.1. Pushing up the box parallel to the ramp, what isthe magnitude Fmin of the minimum force you needபmmin order to get the box to start to move towardsthe back of the truck?2. If µk= 0.15 and µ, = 0.45, for which inclinationof the ramp between 0° and 90°, will you have topush the hardest in order to get the box movingtowards the back of the truck?

Answered: Image /qna-images/answer/642543d3-1f08-4c7b-9b90-788b205f4d19.jpg

Answered: A heavy box of mass M is found at rest…

Similar questions

Two children are pulled on a sled over snow-covered ground. The sled is pulled by a rope that makes an angle of 35° with the horizontal. The children have a combined mass of 45 kg and the sled has a mass of 5.0 kg. The coefficients of static and kinetic friction are u, = 0.20 and µ, = 0.15. Calculate the maximum possible force of static friction between the sled and snow. If the tension in the rope is 95 N, will the sled move? Justify your answer.
A 250 gram block on a 30 deg inclined plane is attached by an inextensible string going over a frictionless pulley to a 500 gram hanging weight. The static and kinetic friction coefficients are .25 and .123. While moving, what is the tension ii the connecting string? O 174530 dynes O 121000 dynes O 262400 dynes O 7430 dynes O 42930 dynes
f the mass of the box is 2.55 kg, the angle of the incline is 40o, and the coefficient of static friction, , between the crate and the incline is 0.37, rank the forces according to their magnitudes. Prompt 1The weight of the block Answer for prompt 1 The weight of the block Prompt 2The Static Friction Force between the block and the ramp Answer for prompt 2 The Static Friction Force between the block and the ramp Prompt 3The Normal Force between the block and the ramp Answer for prompt 3 The Normal Force between the block and the ramp Prompt 4The Tension in the string
The coefficient of static friction between an 8 kg box at rest and a 35° inclined plane is 0.70. Determines whether the object starts moving or stays in a static state. Justify your answer. If the object starts moving, what happens to the coefficient of friction? Also, describes the movement of the box.
A box of mass m = 20.0 kg is pulled up a ramp that is inclined at an angle 0 15.0° angle with respect to the horizontal. The coefficient of kinetic friction between the box and the ramp is µk = 0.285, and the rope pulling the box is parallel to the ramp. If the box accelerates up the ramp at a rate of a 2.89 m/s?, calculate the tension Fr in the rope. Use g = 9.81 m/s² for the acceleration due to gravity. FT = 150.95 N
A person pushes horizontally with a force of 200. N on a 56.0 kg crate to move it across a level floor. The coefficient of kinetic friction is 0.19. (a) What is the magnitude of the frictional force? (b) What is the magnitude of the crate's acceleration?
A crate sits on a horizontal floor that has µk is not equal 0.You push the crate with a horizontal force. Draw a FBD of the crate, and label all of the forces.
You are trying to slide a heavy trunk across a horizontal floor. The mass of the trunk is 85kg, and you need to exert a force of 3.3*10^2 N to make it just begin to move. a)Determine the coefficient of static friction between the floor and the trunk.b)After the trunk starts moving, you continue to push with this force. The trunk reaches a speed of 2.0m/s after 5.0s. Calculate the acceleration of the trunk if the coefficient of kinetic friction between the trunk and the floor is 0.32.
The coefficient of static friction between a rubber tire and dry pavement is about 0.800. Assume that a car's engine only turns the two rear wheels and that the weight of the car is uniformly distributed over all four wheels. What limit does the coefficient of static friction place on the time fmin required for a car to accelerate from rest to 50.0 mph (22.4 m/s)? Imin = How can friction accelerate a car forward when friction opposes motion?
A sled is on a horizontal surface and a rope with tension T is pulling on it at an angle e above the horizontal. The sled had mass M and does not move due to the frictional force. In this case the coefficient of friction is ug. In terms of the variables given and g, what is the magnitude of the frictional force in this case? Select one: O a. Tcose O b. H, Mgsin0 Ос. Tsin® O d. H, Mgcose
Santa Claus tries to drag his bag of presents along a horizontal surface by a red rope that is angled at 55 degrees above the horizontal. Santa Claus applies a force due to tension of 4500N along the red rope. This is the minimum force to just start the bag in motion. The coefficient of kinetic friction between the bag and the ground is 0.3 and the coefficient of static friction is 0.5. What is the mass of the bag?
A 200 kg crate rests on a floor with carpet. A tired worker pushes with a horizontal force of 600 N on the crate initially resting on a thick pile carpet. The coefficients of static and kinetic friction are 0.60 and 0.40, respectively. Find the magnitude of the frictional force exerted by the surface of the crate by the carpet. Hint: Which type of friction acts in this case? What are the properties of different kinds of friction?

SEE MORE QUESTIONS