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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

Vector Mechanics for Engineers: Dynamics

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

Vector Mechanics for Engineers: Dynamics

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

Vector Mechanics for Engineers: Dynamics

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3 - 38

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

Vector Mechanics for Engineers: Dynamics

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

Vector Mechanics for Engineers: Dynamics

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

Vector Mechanics for Engineers: Dynamics

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

Vector Mechanics for Engineers: Dynamics

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

Vector Mechanics for Engineers: Dynamics

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예제 3.2

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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50 kg

25 kg

A

B

50 kg

25 kg

A

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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A

B

50 kg A

T

25 kgB

T

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

Vector Mechanics for Engineers: Dynamics

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25 kg

A

50 kg A

T=25 x 9.81 N

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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50 kg

25 kg

A

B

50 kg

25 kg

A

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

Vector Mechanics for Engineers: Dynamics

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30o

A

B s=0.12

k=0.10

s=0.24

k=0.20

mA=10 kg m

B=5 kg

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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B

WB

F

N1

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

Vector Mechanics for Engineers: Dynamics

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B

WB

F

N1

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

Vector Mechanics for Engineers: Dynamics

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A

N1

F

F

N2W

A

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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A

N1

F

F

N2W

A

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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예제 3.3

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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예제 3.4

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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= 15o

10 m

A

C

=0.12F

N

F=k F

N

W

예제)

a)

© 2004 The McGraw-Hill Companies, Inc. All rights reserved.

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= 15o

10 m

A

C

=0.12

FN

F=k

FN

W

b)

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