This question is worth 25 marks. A block of stone, with a mass of 2600 kg,...
This question is worth 25 marks.
A block of stone, with a mass of 2600 kg, is being carried on a light sledge. It is held at rest on a smooth ramp by workers pulling on a rope attached to the block. The ramp makes an angle of 14° with the horizontal, and the rope is parallel to the ramp. Each worker can pull with a force of maximum magnitude 350 N.
a.Draw a force diagram of the situation described. (4 marks)
b.Calculate the tension in the rope, giving your answer to two significant figures. (12 marks)
c.Find the minimum number of workers needed to hold the block. (4 marks)
d.State and justify any assumptions you have applied to your calculations in parts (b) and (c). (5 marks)
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This question is worth
25 marks.
A block of stone, with
a mass of 2600 kg,...
kg, is being carried on on a smooth ramp by workers pulling on a rope attached...
kg, is being carried on on a smooth ramp by workers pulling on a rope attached to the block. The ramp makes an angle of 14° with the horizontal, and the rope is parallel to the ramp. Each worker can pull with a force of maximum magnitude 350 N. 2600 kg a. Draw a force diagram of the situation described. b. Calculate the tension in the rope, giving your answer to two significant figures. c. Find the minimum number of...
You have a crate full of books with a total mass of 32 kg that you...
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A block of mass 9.8 kg is resting on a ramp that is inclined 11.9 degrees...
A block of mass 9.8 kg is resting on a ramp that is inclined 11.9 degrees relative to horizontal. The ramp is so smooth, the block can slide without any friction opposing its motion. Include the appropriate SI units with your answers below. a) How hard do you have to push on the block (i.e., how much force is needed), along the direction of the incline, just to hold it motionless on the ramp? b) How hard do you have...
Please show work! A pulley of negligible mass is attached to a block weighing 504 N. A person uses the rope and pulley s...
Please show work!
A pulley of negligible mass is attached to a block weighing 504
N. A person uses the rope and pulley system illustrated in the
figure to lift the block at a constant velocity. The pulleys and
rope are all ideal.
F_G=____________ ?
A. Draw the free body diagram for the block. (Observe that three
are two rope segments pulling on the block.)
B. Apply Newton's first law and determine the tension in the
rope, and thus, the...
#2 1. A block of wood has a mass of 25 kg and a density of...
#2
1. A block of wood has a mass of 25 kg and a density of 650 kg/m'. You are holding it under water by pushing downward. a) What is the volume of the block of wood? b) What is the buoyant force on it? c) What is the magnitude of the downward force you are exerting to hold the block under water? 2. In the diagram, the hinge is frictionless and the system is in equilibrium. The uniform beam...
1. A block with weight W = 30 N is on a flat horizontal surface. You...
1. A block with weight W = 30 N is on a flat horizontal surface. You pull to the right with a force F = 16 N. There is gravity present and the coefficient of friction is static = 0.4 and kinetic - 0.25. You are also pulling straight up with an applied force of 12 N. Now what are: The normal force N-_ the frictional force f- the net force on the block Foot and acceleration a = 2....
Q3 QUESTION 3 The block with mass of 10 kg is attached with the spring located...
Q3
QUESTION 3 The block with mass of 10 kg is attached with the spring located on the smooth plane as shown in Figure Q3. The plane has been raised to 8 =30° from horizontal surface. When the force F= 200 N is applied, the block started moving down the plane with a speed of 2 m/s. We know that when s = 0.4 m, the spring in an unstretched condition. Given the spring has a stiffness, k=300 N/m (a)...
This question is worth 20 marks Figure 2 shows a decorator's plank, which is 5 m in length, supported on two trestles. The mass of the plank is 37 kg and the mass of the decorator is 70 kg. In or...
This question is worth 20 marks Figure 2 shows a decorator's plank, which is 5 m in length, supported on two trestles. The mass of the plank is 37 kg and the mass of the decorator is 70 kg. In order to paint a stairwell the decorator has to position themselves at point A, as shown on Figure 2. To stop the plank tipping, the decorator's assistant attaches weights to a rope at point B Figure 2 The decorator's plank...
Identifying and Drawing Force Vectors (No Calculator) FN Surface Force perpendicular to Eill in the table...
Identifying and Drawing Force Vectors (No Calculator) FN Surface Force perpendicular to Eill in the table and draw a FBD for each of the following casesTe the surface. object is in BOLD letter Fr- Friction (Surface force parallel to the surface; opposes motion). We will only consider siding friction FA- Applied force. = Force towards the center of Q1. The surface is rough and the block speeds up. Q2. The crate is held by the rope on a smooth surface...
kg, is being carried on on a smooth ramp by workers pulling on a rope attached to the block. The ramp makes an angle of 14° with the horizontal, and the rope is parallel to the ramp. Each worker can pull with a force of maximum magnitude 350 N. 2600 kg a. Draw a force diagram of the situation described. b. Calculate the tension in the rope, giving your answer to two significant figures. c. Find the minimum number of...
You have a crate full of books with a total mass of 32 kg that you have to move from your bedroom to the door of your apartment using a rope attached to the crate. The coefficient of static friction between the crate and the floor is 0.65, and the coefficient of kinetic friction is 0.45 (a) Pulling the rope horizontally, what is the minimum force you have to pull with to get the crate to start moving? (b) Once...
Please show work!
A pulley of negligible mass is attached to a block weighing 504
N. A person uses the rope and pulley system illustrated in the
figure to lift the block at a constant velocity. The pulleys and
rope are all ideal.
F_G=____________ ?
A. Draw the free body diagram for the block. (Observe that three
are two rope segments pulling on the block.)
B. Apply Newton's first law and determine the tension in the
rope, and thus, the...
#2
1. A block of wood has a mass of 25 kg and a density of 650 kg/m'. You are holding it under water by pushing downward. a) What is the volume of the block of wood? b) What is the buoyant force on it? c) What is the magnitude of the downward force you are exerting to hold the block under water? 2. In the diagram, the hinge is frictionless and the system is in equilibrium. The uniform beam...
1. A block with weight W = 30 N is on a flat horizontal surface. You pull to the right with a force F = 16 N. There is gravity present and the coefficient of friction is static = 0.4 and kinetic - 0.25. You are also pulling straight up with an applied force of 12 N. Now what are: The normal force N-_ the frictional force f- the net force on the block Foot and acceleration a = 2....
Q3
QUESTION 3 The block with mass of 10 kg is attached with the spring located on the smooth plane as shown in Figure Q3. The plane has been raised to 8 =30° from horizontal surface. When the force F= 200 N is applied, the block started moving down the plane with a speed of 2 m/s. We know that when s = 0.4 m, the spring in an unstretched condition. Given the spring has a stiffness, k=300 N/m (a)...
This question is worth 20 marks Figure 2 shows a decorator's plank, which is 5 m in length, supported on two trestles. The mass of the plank is 37 kg and the mass of the decorator is 70 kg. In order to paint a stairwell the decorator has to position themselves at point A, as shown on Figure 2. To stop the plank tipping, the decorator's assistant attaches weights to a rope at point B Figure 2 The decorator's plank...
Identifying and Drawing Force Vectors (No Calculator) FN Surface Force perpendicular to Eill in the table and draw a FBD for each of the following casesTe the surface. object is in BOLD letter Fr- Friction (Surface force parallel to the surface; opposes motion). We will only consider siding friction FA- Applied force. = Force towards the center of Q1. The surface is rough and the block speeds up. Q2. The crate is held by the rope on a smooth surface...
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