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An elevator with a person in it is being pulled upwards by a massive cable. Identify...
An elevator is pulled upward so it moves with increasing upward speed?the force exerted by the...
An elevator is pulled upward so it moves with increasing upward
speed?the force exerted by the cable on the elevator is constant
and greater than the downward gravitational force exerted by Earth.
When the elevator is moving up medium-fast, the force exerted by
the cable on the elevator changes abruptly to just balance the
downward gravitational force of Earth?the sum of the forces that
the cable and Earth exert on the elevator is now zero.
QUESTION 1 A crate at rest resting on a floor: Normal force direction will be: along...
QUESTION 1 A crate at rest resting on a floor: Normal force direction will be: along the angle of the ramp with respect to the horizontal towards the center of earth parallel to the surface of the ramp perpendicular to the surface of the ramp 1 points QUESTION 2 A box is at rest on a wooden surface. The frictional force direction in this case will be: Opposite to the direction of the applied force perpendicular to the surface...
help :( (diagrams 2,3,4 are included here ) QUESTION 7 A box is at rest on...
help :(
(diagrams 2,3,4 are included here )
QUESTION 7 A box is at rest on a horizontal, frictionless table. Horizontal force F1 points along the positive x-axis; when it is the only force acting on the box, the box accelerates at 6.75 m/s. Force F3 is also horizontal; it has magnitude 2.85F, and acts at an angle 22.6° to the direction of F1. If forces F1 and F3 act on the box at the same time, find the magnitude...
The figure below shows a block with mass m = 5.3 kg pulled up a ramp...
The figure below shows a block with mass m = 5.3 kg pulled up a ramp inclined at an angle of 6 = 28° with a force of magnitude F = 33 N parallel to the ramp. m (a) If there is no friction between the block and the ramp, what is the magnitude of the block's acceleration (in m/s2)? 1.485 Draw a free-body diagram. What forces act on the block? Let the x-axis be parallel to the incline. What...
(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the d...
(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the downward force due to gravity. When the elevator is accelerating upward, which is greater, T or w? T w Both forces are equal. (b) When the elevator is moving at a constant velocity upward, which is greater, T or w? T w Both forces are equal. (c) When the elevator is moving upward, but the acceleration...
Three Forces Three forces: F1 = 3 N, F2 = 9 N, and F3 =5 N...
Three Forces Three forces: F1 = 3 N, F2 = 9 N, and F3 =5 N act on a block of mass 3 kg. Calculate the magnitude of the block's acceleration when... 1) all three forces pull in the same direction: 5.7 m/s2 Submit Your submissions: 5.7 Computed value: 5.7 Feedback: Correct! Submitted: Friday, February 14 at 12:03 AM 2) forces F, and F2 pull in the same direction and force F3 pulls in the opposite direction: a = 2.3...
im A rope at an angle θ with the horizontal is pulled with a force UF....
im A rope at an angle θ with the horizontal is pulled with a force UF. It pulls, in turn, two blocks, the bottom with mass M and the top with mass m. The coefficients of friction are p, between the top and bottom block (assume that they do not slide for the given force ) and pu between the bottom block and the table. Remember to show (and possibly evaluate) all forces acting on both blocks, including internal forces...
Plz help me solve all those problem, and explain a little! thank you so much You...
Plz
help me solve all those problem, and explain a little! thank you so
much
You are in an elevator that is moving upwards with its speed increasing at a rate of 3 m/s2. Which diagram best represents the forces acting on you? BFN (A) EN M9 of Diagram C Diagram B Diagram D Diagram A A box of mass [M] kg is held stationary against a vertical wall by a force [FO] N at the angle (theta) degrees as...
I need hep figuring out these three problems Force 3 Total 10 3. In the system...
I need hep figuring out these three problems
Force 3 Total 10 3. In the system shown in Figure, a horizontal force Fx-30N acts on an object of mass m,=10kg. The horizontal surface is frictionless. m, 3kg, (a) Find and draw all the forces using free body diagram for each boxes. (b) build equations for both using Newton's 2nd law for both objects. (c) solve the equations to find the acceleration of both objects. (d) solve the equations to find...
You see there that depending on the angle of “pull", e, three different motions can occur...
You see there that depending on the angle of “pull", e, three different motions can occur - the spool either rolls toward or away from the person pulling the cord or, at a critical angle of pull, does not rotate. The purpose of this exercise is to analyze this behavior using fundamental principles of mechanics. The physical system is shown in the figure and consists of two concentric spools of radius R, and R,, respectively. Cord is wrapped around the...
An elevator is pulled upward so it moves with increasing upward
speed?the force exerted by the cable on the elevator is constant
and greater than the downward gravitational force exerted by Earth.
When the elevator is moving up medium-fast, the force exerted by
the cable on the elevator changes abruptly to just balance the
downward gravitational force of Earth?the sum of the forces that
the cable and Earth exert on the elevator is now zero.
help :(
(diagrams 2,3,4 are included here )
QUESTION 7 A box is at rest on a horizontal, frictionless table. Horizontal force F1 points along the positive x-axis; when it is the only force acting on the box, the box accelerates at 6.75 m/s. Force F3 is also horizontal; it has magnitude 2.85F, and acts at an angle 22.6° to the direction of F1. If forces F1 and F3 act on the box at the same time, find the magnitude...
The figure below shows a block with mass m = 5.3 kg pulled up a ramp inclined at an angle of 6 = 28° with a force of magnitude F = 33 N parallel to the ramp. m (a) If there is no friction between the block and the ramp, what is the magnitude of the block's acceleration (in m/s2)? 1.485 Draw a free-body diagram. What forces act on the block? Let the x-axis be parallel to the incline. What...
Three Forces Three forces: F1 = 3 N, F2 = 9 N, and F3 =5 N act on a block of mass 3 kg. Calculate the magnitude of the block's acceleration when... 1) all three forces pull in the same direction: 5.7 m/s2 Submit Your submissions: 5.7 Computed value: 5.7 Feedback: Correct! Submitted: Friday, February 14 at 12:03 AM 2) forces F, and F2 pull in the same direction and force F3 pulls in the opposite direction: a = 2.3...
im A rope at an angle θ with the horizontal is pulled with a force UF. It pulls, in turn, two blocks, the bottom with mass M and the top with mass m. The coefficients of friction are p, between the top and bottom block (assume that they do not slide for the given force ) and pu between the bottom block and the table. Remember to show (and possibly evaluate) all forces acting on both blocks, including internal forces...
Plz
help me solve all those problem, and explain a little! thank you so
much
You are in an elevator that is moving upwards with its speed increasing at a rate of 3 m/s2. Which diagram best represents the forces acting on you? BFN (A) EN M9 of Diagram C Diagram B Diagram D Diagram A A box of mass [M] kg is held stationary against a vertical wall by a force [FO] N at the angle (theta) degrees as...
I need hep figuring out these three problems
Force 3 Total 10 3. In the system shown in Figure, a horizontal force Fx-30N acts on an object of mass m,=10kg. The horizontal surface is frictionless. m, 3kg, (a) Find and draw all the forces using free body diagram for each boxes. (b) build equations for both using Newton's 2nd law for both objects. (c) solve the equations to find the acceleration of both objects. (d) solve the equations to find...
You see there that depending on the angle of “pull", e, three different motions can occur - the spool either rolls toward or away from the person pulling the cord or, at a critical angle of pull, does not rotate. The purpose of this exercise is to analyze this behavior using fundamental principles of mechanics. The physical system is shown in the figure and consists of two concentric spools of radius R, and R,, respectively. Cord is wrapped around the...
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