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Question 24 4 pts ARALAR A person is pulling a freight cart with a force of...
Three people are playing tug of war but they are not moving. Person 1 is pulling...
Three people are playing tug of war but they are not moving. Person 1 is pulling with 100 pounds of force from a 35 degree angle relative to the X-axis in the positive difection, person 2 is pulling with 200 pounds of force relative at a 22 degree angle to the Y-axis in the negative direction for both X and Y. How much force is the 3rd person pulling with (in Newtons), and in what direction to create this scenario?
Question 4 (force vectors) Two people are pulling on a crate through two ropes. Person A...
Question 4 (force vectors) Two people are pulling on a crate through two ropes. Person A is on the left pulling toward the left with a force of 50 N at 45° and person B is on the right pulling toward the right at an angle of 30%. Here is what the situation looks like from above. The resulting acceleration of the crate is at 0°. acceleration direction person B F@30% person A , 50 N 45o (30% 45°! crate...
Question 4 (force vectors) Two people are pulling on a crate through two ropes. Person A...
Question 4 (force vectors) Two people are pulling on a crate through two ropes. Person A is on the left pulling toward the left with a force of 50 N at 45° and person B is on the right pulling toward the right at an angle of 30°. Here is what the situation looks like from above. The resulting acceleration of the crate is at 0°. acceleration direction person B F 30° person A 50 N 45° 130% 45% crate...
Question 22 of 22 > Track ... Rope . A cart for hauling ore out of...
Question 22 of 22 > Track ... Rope . A cart for hauling ore out of a gold mine has a mass of 445 kg, including its load. The cart runs along a straight stretch of track that climbs a shallow 4.55° incline. A donkey, which is trudging along and to the side of the track, has the unenviable job of pulling the cart up the slope with a 444 N force for a distance of 201 m by means...
4. (35pts) A person is pulling a weight as shown below. His shoulder joint is not...
4. (35pts) A person is pulling a weight as shown below. His shoulder joint is not moving, but his elbow joint is free to rotate. The force vector makes an angle a with the vertical line, as shown below. L1 = 40cm L2 = 30cm F=20N α = 30° L1 し2 a) (10pts) Find the moment at elbow (ME) produced by F as a function of 9 (b) ( 10pts) Find the forearm angle θ that minimize the magnitude of...
answer all 5 questions 12:09 in Cap . In-call volume Question 1 20 pts A flight...
answer all 5 questions
12:09 in Cap . In-call volume Question 1 20 pts A flight attendant pulls her 2 kg flight bag a distance of 81 m along a level airport floor at a constant velocity. The force she exerts is 66 N at an angle of 60 degrees above the horizontal. Find the work she does on the flight bag. Please report the answer to the nearest whole number. Please do not include units or the answer will...
A 45 kg cart is pulled along by a rope that applies a 120 N force...
A 45 kg cart is pulled along by a rope that applies a 120 N force at 30 degree. How much work is done by the 120 N force as the cart moves 7 m? If the friction force on the cart is 50 N, how much work is done by the friction force? How much work is done by gravity? What is the net work done on the cart? If the initial speed of the cart was 5 m/s,...
1.A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a...
1.A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N frictional force. He pushes in a direction 250 below the horizontal. (a) What is the work done on the cart by friction? (b) What is the work done on the cart by the normal force? (c) What is the work done on the cart by the shopper? (4 pts) 2 Calculate the kinetic energies of (a) a 2000.0-kg automobile moving at 100.0...
A spring with a force constant k = 2.2x10^2 N/m is stretched by a person. The...
A spring with a force constant k = 2.2x10^2 N/m is stretched by
a person. The person pulls on the spring with a final applied force
of F_app = 44 N at equilibrium (no motion). How much work was done
by the person in the process?
A spring with a force constant k = 2.2x10^2 N/m is stretched by a person. The person pulls on the spring with a final applied force of F_app = 44 N at equilibrium (no...
1. A 185 g cart is given a quick push up a frictionless incline, giving it...
1. A 185 g cart is given a quick push up a frictionless incline, giving it an initial velocity of 1.45 m/s. The incline is at an angle of 10.0 to the horizontal. You must show your work to get full credit for this problem. a) What is the cart's initial kinetic energy, i.e. when it leaves the launcher? KE =mv eay @ztty =C85k9)(145s) = .1343 b) What is the cart's change in kinetic energy (Kr-Ko) from the launch point...
Three people are playing tug of war but they are not moving. Person 1 is pulling with 100 pounds of force from a 35 degree angle relative to the X-axis in the positive difection, person 2 is pulling with 200 pounds of force relative at a 22 degree angle to the Y-axis in the negative direction for both X and Y. How much force is the 3rd person pulling with (in Newtons), and in what direction to create this scenario?
Question 4 (force vectors) Two people are pulling on a crate through two ropes. Person A is on the left pulling toward the left with a force of 50 N at 45° and person B is on the right pulling toward the right at an angle of 30%. Here is what the situation looks like from above. The resulting acceleration of the crate is at 0°. acceleration direction person B F@30% person A , 50 N 45o (30% 45°! crate...
Question 4 (force vectors) Two people are pulling on a crate through two ropes. Person A is on the left pulling toward the left with a force of 50 N at 45° and person B is on the right pulling toward the right at an angle of 30°. Here is what the situation looks like from above. The resulting acceleration of the crate is at 0°. acceleration direction person B F 30° person A 50 N 45° 130% 45% crate...
Question 22 of 22 > Track ... Rope . A cart for hauling ore out of a gold mine has a mass of 445 kg, including its load. The cart runs along a straight stretch of track that climbs a shallow 4.55° incline. A donkey, which is trudging along and to the side of the track, has the unenviable job of pulling the cart up the slope with a 444 N force for a distance of 201 m by means...
4. (35pts) A person is pulling a weight as shown below. His shoulder joint is not moving, but his elbow joint is free to rotate. The force vector makes an angle a with the vertical line, as shown below. L1 = 40cm L2 = 30cm F=20N α = 30° L1 し2 a) (10pts) Find the moment at elbow (ME) produced by F as a function of 9 (b) ( 10pts) Find the forearm angle θ that minimize the magnitude of...
answer all 5 questions
12:09 in Cap . In-call volume Question 1 20 pts A flight attendant pulls her 2 kg flight bag a distance of 81 m along a level airport floor at a constant velocity. The force she exerts is 66 N at an angle of 60 degrees above the horizontal. Find the work she does on the flight bag. Please report the answer to the nearest whole number. Please do not include units or the answer will...
A 45 kg cart is pulled along by a rope that applies a 120 N force at 30 degree. How much work is done by the 120 N force as the cart moves 7 m? If the friction force on the cart is 50 N, how much work is done by the friction force? How much work is done by gravity? What is the net work done on the cart? If the initial speed of the cart was 5 m/s,...
1.A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N frictional force. He pushes in a direction 250 below the horizontal. (a) What is the work done on the cart by friction? (b) What is the work done on the cart by the normal force? (c) What is the work done on the cart by the shopper? (4 pts) 2 Calculate the kinetic energies of (a) a 2000.0-kg automobile moving at 100.0...
A spring with a force constant k = 2.2x10^2 N/m is stretched by
a person. The person pulls on the spring with a final applied force
of F_app = 44 N at equilibrium (no motion). How much work was done
by the person in the process?
A spring with a force constant k = 2.2x10^2 N/m is stretched by a person. The person pulls on the spring with a final applied force of F_app = 44 N at equilibrium (no...
1. A 185 g cart is given a quick push up a frictionless incline, giving it an initial velocity of 1.45 m/s. The incline is at an angle of 10.0 to the horizontal. You must show your work to get full credit for this problem. a) What is the cart's initial kinetic energy, i.e. when it leaves the launcher? KE =mv eay @ztty =C85k9)(145s) = .1343 b) What is the cart's change in kinetic energy (Kr-Ko) from the launch point...
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