9. An auto mechanic is raising a 200-kg car on his hydraulic lift. If the area of the input piston is 9 cm² while the area of the output piston is 630 cm², what force must be exerted on the input piston to lift the car? D. 23.57 N A. 38.57 N B. 33.57 N C. 28.57 N 10. A body of unknown mass and resting on a horizontal ground is applied an upward force of 100 N at a normal force of 96 N. Find the mass of the body. A. 21.5 kg B. 21.0 kg C. 20.5 kg D. 200 kg

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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9.
An auto mechanic is raising a 200-kg car on his hydraulic lift. If the area of the input piston is 9 cm² while the
area of the output piston is 630 cm², what force must be exerted on the input piston to lift the car?
A. 38.57 N
B. 33.57 N
C. 28.57 N
D. 23.57 N
10. A body of unknown mass and resting on a horizontal ground is applied an upward force of 100 N at a normal
force of 96 N. Find the mass of the body.
A. 21.5 kg
B. 21.0 kg
C. 20.5 kg
D. 20.0 kg
Transcribed Image Text:9. An auto mechanic is raising a 200-kg car on his hydraulic lift. If the area of the input piston is 9 cm² while the area of the output piston is 630 cm², what force must be exerted on the input piston to lift the car? A. 38.57 N B. 33.57 N C. 28.57 N D. 23.57 N 10. A body of unknown mass and resting on a horizontal ground is applied an upward force of 100 N at a normal force of 96 N. Find the mass of the body. A. 21.5 kg B. 21.0 kg C. 20.5 kg D. 20.0 kg
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