9 An empty elevator has a weight of 7000 N. The elevator is moving upward at 8ms". It slows to a stop with a constant acceleration in 5 s. Calculate: (a) the acceleration of the elevator. (b) the tension in the supporting cable of the elevator. [Answer: (a) -1.60 m s (b) 5858.31 N]
9 An empty elevator has a weight of 7000 N. The elevator is moving upward at 8ms". It slows to a stop with a constant acceleration in 5 s. Calculate: (a) the acceleration of the elevator. (b) the tension in the supporting cable of the elevator. [Answer: (a) -1.60 m s (b) 5858.31 N]
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
Related questions
Question
100%
![(a) the reaction force
(b) the frictional force DOM
(c) the acceleration of the box
[Answer: (a) 82.48 N (b) 24.74 N (C) 4.00 m s ]
9. An empty elevator has a weight of 7000 N. The elevator is moving upward at
8 ms". It slows to a stop with a constant acceleration in 5 s. Calculate:
(a) the acceleration of the elevator.
(b) the tension in the supporting cable of the elevator.
[Answer: (a) -1.60 m s (b) 5858.31 N]
10.
bab
nr ebold
ea arllo noilals
A box, A, of mass 15 kg rests on a smooth horizontal floor beside a box, B,
of mass 8 kg as shown in the figure above. If the box of 15 kg is pushed with
30 N force at 30° above the horizontal plane, calculate:
(a) the acceleration of the boxes.
(b) the contact force between the boxes.
[Answer: (a) 1.13 ms (b) 9.04 N]
11.
Two blocks connected by a light string are pulled towards the right as shown
in the figure. Assume the floor is frictionless. Given mA = 3 kg, m = 2 kg and
the acceleration of the system is 2 m s, calculate:
(a) the tension, T, in string between block A and block B.
(b) the pulling force, F.
[Answer: (a) 6 N (b) 10 N]
mal onitootal
12. Calculate the acceleration for an Atwood's machine with masses 3 kg and
8 kg.
analy baallooi nw
[Answer: 4.46 m s]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd59b69f7-b105-48eb-9cf0-173dad5e0c4f%2F02fa423b-9a0b-47dc-91bb-41b0f4085f63%2F8gwsegk_processed.jpeg&w=3840&q=75)
Transcribed Image Text:(a) the reaction force
(b) the frictional force DOM
(c) the acceleration of the box
[Answer: (a) 82.48 N (b) 24.74 N (C) 4.00 m s ]
9. An empty elevator has a weight of 7000 N. The elevator is moving upward at
8 ms". It slows to a stop with a constant acceleration in 5 s. Calculate:
(a) the acceleration of the elevator.
(b) the tension in the supporting cable of the elevator.
[Answer: (a) -1.60 m s (b) 5858.31 N]
10.
bab
nr ebold
ea arllo noilals
A box, A, of mass 15 kg rests on a smooth horizontal floor beside a box, B,
of mass 8 kg as shown in the figure above. If the box of 15 kg is pushed with
30 N force at 30° above the horizontal plane, calculate:
(a) the acceleration of the boxes.
(b) the contact force between the boxes.
[Answer: (a) 1.13 ms (b) 9.04 N]
11.
Two blocks connected by a light string are pulled towards the right as shown
in the figure. Assume the floor is frictionless. Given mA = 3 kg, m = 2 kg and
the acceleration of the system is 2 m s, calculate:
(a) the tension, T, in string between block A and block B.
(b) the pulling force, F.
[Answer: (a) 6 N (b) 10 N]
mal onitootal
12. Calculate the acceleration for an Atwood's machine with masses 3 kg and
8 kg.
analy baallooi nw
[Answer: 4.46 m s]
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