N7. An elevator of mass 890 kg has an upward force of 1.10 x 10N applied to it. Determine the following: a) the net force on the elevator. b) the acceleration of the elevator. (ANS: a) 2.23 x 103 N b) 2.56 m/s²) 8. In a comnetition
N7. An elevator of mass 890 kg has an upward force of 1.10 x 10N applied to it. Determine the following: a) the net force on the elevator. b) the acceleration of the elevator. (ANS: a) 2.23 x 103 N b) 2.56 m/s²) 8. In a comnetition
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Chapter1: Units, Trigonometry. And Vectors
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![N7. An elevator of mass 890 kg has an upward force of 1.10 x 10ªN applied to it.
Determine the following:
a) the net force on the elevator.
b) the acceleration of the elevator.
(ANS: a) 2.23 x 10³ N b) 2.56 m/s²)
18. In a competition, a small robot accelerates forward at 0.25 m/s² as it pushes a wood a = 0.25 m/s² block of
mass 1.6 kg towards a basket. A friction force of 3.7 N exists between the block and floor.
a) What is the net force acting on the block?
b) What force is the robot applying to accelerate the block?
(ANS: a) 0.4 N b) 4.1 N)
a = 0.25 m/s?
000
9. A hoist is used to lift a 780 kg car upward with an acceleration of 0.110 m/s².
a) What is the net force acting on the car?
b) What force was used to lift the car?
(ANS: a) 86 N b) 7.73 x 10³ N)
a 0.11 m/s
Wigh se](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F27e7e80b-03df-453b-a555-8f500263e07b%2F3d9f1169-c065-41f5-90a0-297c6e4242f5%2Ft3elo4f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:N7. An elevator of mass 890 kg has an upward force of 1.10 x 10ªN applied to it.
Determine the following:
a) the net force on the elevator.
b) the acceleration of the elevator.
(ANS: a) 2.23 x 10³ N b) 2.56 m/s²)
18. In a competition, a small robot accelerates forward at 0.25 m/s² as it pushes a wood a = 0.25 m/s² block of
mass 1.6 kg towards a basket. A friction force of 3.7 N exists between the block and floor.
a) What is the net force acting on the block?
b) What force is the robot applying to accelerate the block?
(ANS: a) 0.4 N b) 4.1 N)
a = 0.25 m/s?
000
9. A hoist is used to lift a 780 kg car upward with an acceleration of 0.110 m/s².
a) What is the net force acting on the car?
b) What force was used to lift the car?
(ANS: a) 86 N b) 7.73 x 10³ N)
a 0.11 m/s
Wigh se
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