A woman riding in an elevator is holding a 1 kg briefcase, with her arm hanging...
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A woman riding in an elevator is holding a 1 kg briefcase,
with her arm hanging...
A woman whose mass is 75 kg is riding in an elevator which is going down...
A woman whose mass is 75 kg is riding in an elevator which is going down with a speed of 10 m/s. The elevator takes 3.0 s to come to a stop. What was her apparent weight during this deceleration?
A person walks into an elevator holding two masses hanging on ropes, one below the other....
A person walks into an elevator holding two masses hanging on
ropes, one below the other. The top mass is 6.35 kg and the lower
mass is 2.28 kg. The elevator begins to move downward with an
acceleration of 5.04 m/s/s before reaching a constant velocity.
(a) How much tension (in Newtons) is in the rope between the
masses during the acceleration?
(b) If the elevator cable suddenly broke and the elevator were
in freefall, what would the lower hanging...
A 62-kg woman in an elevator is accelerating downward at a rate of 1.6 m/s2. What...
A 62-kg woman in an elevator is accelerating downward at a rate of 1.6 m/s2. What is the magnitude of the force exerted by the elevator floor on the woman's feet?
A) 70 kg man s standing in an elevator. Find the reaction of the elevator...
A) 70 kg man s standing in an elevator. Find the reaction of the elevator on the man if a) the elevator is accelerating upward at 1.5 m/s^2 b) the elevator is accelerating downward at 1.5m/s^2 c) the elevator is descending at a constant velocity 3m/s. B) If the elevator and its contents has a total mass of 1500kg, and it is sup four cables each having a tension T. ? find the tension T IN EACH OF THE...
A woman lifts a 3.6-kg barbell in each hand with her arm in a horizontal position...
A woman lifts a 3.6-kg barbell in each hand with her arm in a
horizontal position at the side of her body and holds it there for
3 s (see the figure below).
What force does the deltoid muscle in her shoulder exert on the
humerus bone while holding the barbell? The deltoid attaches 13 cm
from the shoulder joint and makes a 13? angle with the humerus. The
barbell in her hand is 0.55 m from the shoulder joint,...
A 920 kg elevator is suspended by a vertical cable. The elevator is accelerating down at...
A 920 kg elevator is suspended by a vertical cable. The elevator is accelerating down at 1.1 m/s2. What is the tension in the cable? Express your answer in newtons and round to the nearest whole number.
A person in an elevator is holding a 10.2 kg block by a cord rated to...
A person in an elevator is holding a 10.2 kg block by a cord rated to withstand a tension of 140 N. When the elevator starts up, the cord breaks. The acceleration of gravity is 9.81 m/s 2 . What was the minimum acceleration of the elevator? Answer in units of m/s 2 .
A single mass (m1 = 4.4 kg) hangs from a spring in a motionless elevator.
A single mass (m1 = 4.4 kg) hangs from a spring in a motionless elevator. The spring constant is k = 270 N/m. 1) What is the distance the spring is stretched from its unstretched length? 2) Now, three masses (m1 = 4.4 kg, m2 = 13.2 kg and m3 = 8.8) hang from three identical springs in a motionless elevator. The springs all have the same spring constant given above. What is the magnitude of the force the bottom spring exerts on the...
A woman doing seated machine curls rests her upper arm on an arm pad, parallel to...
A woman doing seated machine curls rests her upper arm on an arm pad, parallel to the floor as shown in Fig. 2.12. She then pulls on the bar that is connected through a cable and a pulley to a weight of 10 kg. The weight moves up with an acceleration of 2 m/s2. Determine the tension in the cable.
5. What is the tension of the cable of a 2000 kg elevator in City Center...
5. What is the tension of the cable of a 2000 kg elevator in City Center if it a) is accelerating up at a rate of 1.5 m/s2? (2 marks) b) is accelerating down at a rate of 1.5 m/s?? (2 marks) Moving upat a constant velocity of 70 m/s (2 marko) d) Moving down with a constant velocity of 5 m/s (2 marks) 6. The picture below is an example of an Atwood machine, m-3.55 kg, m,-2.77 kg Find...
A person walks into an elevator holding two masses hanging on
ropes, one below the other. The top mass is 6.35 kg and the lower
mass is 2.28 kg. The elevator begins to move downward with an
acceleration of 5.04 m/s/s before reaching a constant velocity.
(a) How much tension (in Newtons) is in the rope between the
masses during the acceleration?
(b) If the elevator cable suddenly broke and the elevator were
in freefall, what would the lower hanging...
A) 70 kg man s standing in an elevator. Find the reaction of the elevator on the man if a) the elevator is accelerating upward at 1.5 m/s^2 b) the elevator is accelerating downward at 1.5m/s^2 c) the elevator is descending at a constant velocity 3m/s. B) If the elevator and its contents has a total mass of 1500kg, and it is sup four cables each having a tension T. ? find the tension T IN EACH OF THE...
A woman lifts a 3.6-kg barbell in each hand with her arm in a
horizontal position at the side of her body and holds it there for
3 s (see the figure below).
What force does the deltoid muscle in her shoulder exert on the
humerus bone while holding the barbell? The deltoid attaches 13 cm
from the shoulder joint and makes a 13? angle with the humerus. The
barbell in her hand is 0.55 m from the shoulder joint,...
5. What is the tension of the cable of a 2000 kg elevator in City Center if it a) is accelerating up at a rate of 1.5 m/s2? (2 marks) b) is accelerating down at a rate of 1.5 m/s?? (2 marks) Moving upat a constant velocity of 70 m/s (2 marko) d) Moving down with a constant velocity of 5 m/s (2 marks) 6. The picture below is an example of an Atwood machine, m-3.55 kg, m,-2.77 kg Find...
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