Problem 9: An elevator packed with people has a mass of 1950 kg. How far, in...
Problem 9: An elevator packed with people has a mass of 1950 kg. How far, in meters, has the elevator moved above its original starting point?
The elevator continues upward at constant velocity for 8.7 s
The elevator accelerates upward (in the positive direction) from rest at a rate of 1.7 m/s2 for 2.45 s
The elevator experiences a negative acceleration at a rate of 0.75 m/s2 for 2.6 s
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Problem 9: An elevator packed with people has a mass of 1950 kg.
How far, in...
5. An elevator filled with passengers has a mass of 1570 kg a.) The elevator accelerates...
5. An elevator filled with passengers has a mass of 1570 kg a.) The elevator accelerates upward from rest at a rate of 11.2 m/s² for 1.95, Calculate the tension in the cable Supporting the elevator. b.) The elevator continues upward at constant velocity for 5.ls. What is the tension in the cable during this time? TE_ Units c.) The elevator decelerates at a rate of 0.8m/s² for 3.2s. What is the tension in the cable during deceleration ? T=...
An elevator cabin has a mass of 358.1 kg, and the combined mass of the people...
An elevator cabin has a mass of 358.1 kg, and the combined mass of the people inside the cabin is unknown. The cabin is pulled upward by a cable, when the elevator is at rest, the tension in the cable is 5167.54 N, what is the combined mass of the people inside cabin? When the elevator accelerates downward, the tension in the cable is 4000 N, What is the acceleration of the elevator?
(13.1) An elevator riding in a frictionless vertical shaft has total mass of 1000 kg. (a)...
(13.1) An elevator riding in a frictionless vertical shaft has total mass of 1000 kg. (a) The elevator cable exerts a force of 9000 N in the upward direction on the elevator. Determine (i) the acceleration of the elevator, and (ii) how long it takes for the elevator, starting from rest, to attain a speed of 5 m/s. (b) The cable exerts a force of 12000 N [up] on the elevator. Determine (i) the acceleration of the elevator, and (ii)...
Suppose a person with a mass of 60 kg is in an elevator standing on a...
Suppose a person with a mass of 60 kg is in an elevator standing on a scale that reads in Newtons. Use a free body diagrams of the scale and the person to determine what the scale would read for the following situations: A. If the elevator is descending at 4.9 m/s. B. If the elevator has a downward acceleration of 4.9 m/s2 . C. If the elevator has an upward acceleration of 4.9 m/s2 . explain WHY
(a) An elevator of mass m moving upward has two forces acting on it: the upward...
(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? Tw Both forces are equal. (b) When the elevator is moving at a constant velocity upward, which is greater, T or w? Tw Both forces are equal. (c) When the elevator is moving upward, but the acceleration is downward, which is...
A 75-kg person stands on a weight scale in an elevator and pushes the button to...
A 75-kg person stands on a weight scale in an elevator and pushes the button to go up. The elevator accelerates upward at 3 m/s2, then rises at a steady speed of 15 m/s, and finally decelerates at the top floor at a rate of 2 m/s2. Match the force values to their descriptions. Some values may be used more than once, and some may not be used at all. 1. person's weight during upward acceleration 2. scale reading during...
QUESTION 24 An elevator of total mass 200 kg is supported by a single cable, as...
QUESTION 24 An elevator of total mass 200 kg is supported by a single cable, as shown in the diagram. What will the tension in the cable be if it accelerates upwards at rate of 2.37 m/s2, in units of newtons? -Cable Elevator QUESTION 25 An object moves in a horizontal circle of radius 2.50 m at a speed of 27.1 m/s. What is the centripetal acceleration of the object, in units of m/s2?
Two blocks each of mass m = 3.49 kg are fastened to the top of an elevator as in the figure. (a) If the elevator has...
Two blocks each of mass m = 3.49
kg are fastened to the top of an elevator as in the figure.
(a) If the elevator has an upward acceleration a = 1.60 m/s2, find
the tensions T1 and T2 in the upper and lower strings.
T1 =_____ N
T2 =_____ N
(b) If the strings can withstand a maximum tension of 94.0 N, what
maximum acceleration can the elevator have before the upper string
breaks?
________ m/s2
please show all...
(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...
A 72 kg man stands on a bathroom scale in an elevator. Starting from rest at...
A 72 kg man stands on a bathroom scale in an elevator. Starting from rest at the top floor, the elevator descends, attaining its maximum speed of 1.20 m/s in 0.80 s. It travels with this constant speed for the next 5.00 s. The elevator then slows down for 1.50 s and comes to rest at ground level. a)What is the acceleration of the man during the first 0.80 s? Answer in units of m/s2 and use the upward direction...
5. An elevator filled with passengers has a mass of 1570 kg a.) The elevator accelerates upward from rest at a rate of 11.2 m/s² for 1.95, Calculate the tension in the cable Supporting the elevator. b.) The elevator continues upward at constant velocity for 5.ls. What is the tension in the cable during this time? TE_ Units c.) The elevator decelerates at a rate of 0.8m/s² for 3.2s. What is the tension in the cable during deceleration ? T=...
An elevator cabin has a mass of 358.1 kg, and the combined mass of the people inside the cabin is unknown. The cabin is pulled upward by a cable, when the elevator is at rest, the tension in the cable is 5167.54 N, what is the combined mass of the people inside cabin? When the elevator accelerates downward, the tension in the cable is 4000 N, What is the acceleration of the elevator?
QUESTION 24 An elevator of total mass 200 kg is supported by a single cable, as shown in the diagram. What will the tension in the cable be if it accelerates upwards at rate of 2.37 m/s2, in units of newtons? -Cable Elevator QUESTION 25 An object moves in a horizontal circle of radius 2.50 m at a speed of 27.1 m/s. What is the centripetal acceleration of the object, in units of m/s2?
Two blocks each of mass m = 3.49
kg are fastened to the top of an elevator as in the figure.
(a) If the elevator has an upward acceleration a = 1.60 m/s2, find
the tensions T1 and T2 in the upper and lower strings.
T1 =_____ N
T2 =_____ N
(b) If the strings can withstand a maximum tension of 94.0 N, what
maximum acceleration can the elevator have before the upper string
breaks?
________ m/s2
please show all...
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