Homework Answers
To open the torque apply by person and spring should be equal.
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The figure below shows a person opening a door against a spring that provides -200 N...
In opening a door, a 57.3 N force is applied as shown in the figure below....
In opening a door, a 57.3 N force is applied as shown in the figure below. Find the torque produced by this force with respect to point O. (Let r-0.880 m and θ-68.5.) magnitude direction clockwise
Why is the answer E and not A? 19. When opening a door, you push with...
Why is the answer E and not
A?
19. When opening a door, you push with a force with magnitude F and which is directed perpendicularly to the door. If you apply the force closer to the hinges of the door.. A. the torque you exert and the angle the door moves through for a given distance which your B. the torque you exert will be larger, but the angle the door moves through for a given distance C. there...
Exploration 2.2 For this Exploration, find a door at home. First apply a force perpendicular to...
Exploration 2.2 For this Exploration, find a door at home. First apply a force perpendicular to a line through the pivot point (the door hinge) and the point of application. In other words, apply a force perpendicular to the door. Depending on the mass of the door, the force applied may not need to be very large. Just make sure you use the same force for all portions of this exercise. Then apply the force at an angle. Is the...
The figure below shows a person fishing with a fishing pole that makes an angle of...
The figure below shows a person fishing with a fishing pole that
makes an angle of 20.0° above the horizontal. The distance from the
person's hand to the tip of the pole is
L = 2.04 m.
A fish is on the line, and it pulls the line with a force of
F = 115 N
at an angle 37.0° below the horizontal. What is the magnitude of
the torque (in N · m) exerted by the fish about an...
The figure shows a person whose weight is W 700 N doing push-ups. Find the normal force exerted by the floor on (a)...
The figure shows a person whose weight is W 700 N doing push-ups. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that the person holds this position. 0.410 m 0.840 m Units (a) Number Units (b) Number
The figure shows a person whose weight is W = 694 N doing push-ups. Find the...
The figure shows a person whose weight is W = 694 N doing push-ups. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that the person holds this position. leg=0.840m arm=0.410m
A 1.80-kgkg material is forced against a masless spring with a force constant 200 N/mN/m ,...
A 1.80-kgkg material is forced against a masless spring with a
force constant 200 N/mN/m , pressing the spring 0.260
mm distance. After releasing, the material slides on a
horizontal axis with a kinetic friction
consant μkμk=0.30
A 1.80-kg material is forced against a masless spring with a force constant 200 N/m, pressing the spring 0.260 m distance. After releasing, the material slides on a horizontal axis with a kinetic friction consant k =0.30 Part A Calculate how far the material goes from...
The figure below shows a human arm that weighs 39.3 N. The arm is extended outward...
The figure below shows a human arm that weighs 39.3 N. The arm
is extended outward and is motionless. The gravitational force
Fg
on the arm acts at point A, a distance of 0.290 m from
the shoulder joint, which is represented by point O. The
shoulder pushes down and to the right on the humerus bone of the
arm with a force
Fs
at point O, at an angle θ as shown. The
deltoid muscle pulls back on the...
he figure, a spring with spring constant k = 170 N/m s at the top of...
he figure, a spring with spring constant k = 170 N/m s at the top of a frictionless incline of angle θ 36". The lower end of the incline is distance D = 1.0 m from the end of the spring, which is at its relax length. A 2.1 kg canister is pushed against the spring until the spring is compressed 0.24 m and released from rest. (a) What is the speed of the canister at the instant the spring...
The figure shows a 400-mmidiameter brake drum with four internally expanding shoes. Vach of the hinge...
The figure shows a 400-mmidiameter brake drum with four internally expanding shoes. Vach of the hinge pins 4 and 8 sapports a pair of shoes. The sctuating mechanism is to be aranged to produce the same force F on each shoe. The face width of the shoes is 75 mm The material unel permits a coefficient of friction of 0.24 and a maximum pressure of 100o kPa.) (a) Determine the actuating force. (b) Estimate the brake capacity (c) Notingg that...
In opening a door, a 57.3 N force is applied as shown in the figure below. Find the torque produced by this force with respect to point O. (Let r-0.880 m and θ-68.5.) magnitude direction clockwise
Why is the answer E and not
A?
19. When opening a door, you push with a force with magnitude F and which is directed perpendicularly to the door. If you apply the force closer to the hinges of the door.. A. the torque you exert and the angle the door moves through for a given distance which your B. the torque you exert will be larger, but the angle the door moves through for a given distance C. there...
Exploration 2.2 For this Exploration, find a door at home. First apply a force perpendicular to a line through the pivot point (the door hinge) and the point of application. In other words, apply a force perpendicular to the door. Depending on the mass of the door, the force applied may not need to be very large. Just make sure you use the same force for all portions of this exercise. Then apply the force at an angle. Is the...
The figure below shows a person fishing with a fishing pole that
makes an angle of 20.0° above the horizontal. The distance from the
person's hand to the tip of the pole is
L = 2.04 m.
A fish is on the line, and it pulls the line with a force of
F = 115 N
at an angle 37.0° below the horizontal. What is the magnitude of
the torque (in N · m) exerted by the fish about an...
The figure shows a person whose weight is W 700 N doing push-ups. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that the person holds this position. 0.410 m 0.840 m Units (a) Number Units (b) Number
A 1.80-kgkg material is forced against a masless spring with a
force constant 200 N/mN/m , pressing the spring 0.260
mm distance. After releasing, the material slides on a
horizontal axis with a kinetic friction
consant μkμk=0.30
A 1.80-kg material is forced against a masless spring with a force constant 200 N/m, pressing the spring 0.260 m distance. After releasing, the material slides on a horizontal axis with a kinetic friction consant k =0.30 Part A Calculate how far the material goes from...
The figure below shows a human arm that weighs 39.3 N. The arm
is extended outward and is motionless. The gravitational force
Fg
on the arm acts at point A, a distance of 0.290 m from
the shoulder joint, which is represented by point O. The
shoulder pushes down and to the right on the humerus bone of the
arm with a force
Fs
at point O, at an angle θ as shown. The
deltoid muscle pulls back on the...
he figure, a spring with spring constant k = 170 N/m s at the top of a frictionless incline of angle θ 36". The lower end of the incline is distance D = 1.0 m from the end of the spring, which is at its relax length. A 2.1 kg canister is pushed against the spring until the spring is compressed 0.24 m and released from rest. (a) What is the speed of the canister at the instant the spring...
The figure shows a 400-mmidiameter brake drum with four internally expanding shoes. Vach of the hinge pins 4 and 8 sapports a pair of shoes. The sctuating mechanism is to be aranged to produce the same force F on each shoe. The face width of the shoes is 75 mm The material unel permits a coefficient of friction of 0.24 and a maximum pressure of 100o kPa.) (a) Determine the actuating force. (b) Estimate the brake capacity (c) Notingg that...
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