(a) Explanation Given information: The mass of head A ( m A ) is 7.1 kg. The radius ( ρ ) of the horizontal circle is 0.93 m. The angle ( θ ) of wire with horizontal is 60 ° . Calculation: Write the general equation of weight ( W A ) of the head A . W A = m A g Here, g is the acceleration due to gravity. Write the general equation of acceleration ( a A ) of head A . a A = v A 2 ρ Here, v A is the velocity of head A . Sketch the free body diagram and kinetic diagram of head A as shown in Figure (1). Refer Figure (1), Apply Newton’s law of equation along y -axis (b) To determine The speed of the hammer’s head.

Connect 1 Semester Access Card for Vector Mechanics for Engineers: Statics and Dynamics

11th Edition

ISBN: 9781259639272

Author: Ferdinand P. Beer, E. Russell Johnston Jr., David Mazurek, Phillip J. Cornwell, Brian Self

Publisher: McGraw-Hill Education

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Chapter 12.1, Problem 12.37P

(a)

To determine

The tension in wire BC.

(b)

To determine

The speed of the hammer’s head.

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Chapter 12.1, Problem 12.36P

Chapter 12.1, Problem 12.38P

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Connect 1 Semester Access Card for Vector Mechanics for Engineers: Statics and Dynamics

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The tension in wire BC .