(II) The forearm in Fig. 8-46 accelerates a 3.6-kg ball at

Chapter 2, Problem 38P

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QUESTION:

(II) The forearm in Fig.  accelerates a  ball at \(7.0 \mathrm{~m} / \mathrm{s}^{2}\) by means of the triceps muscle, as shown. Calcu. late (a) the torque needed, and (  ) the force that must be exerted by the triceps muscle. Ignore the mass of the arm.

FIGURE 8-45 Problem 38

Equation Transcription:

Text Transcription:

7.0 \mathrm{~m} / \mathrm{s}^{2}

Questions & Answers

QUESTION:

(II) The forearm in Fig.  accelerates a  ball at \(7.0 \mathrm{~m} / \mathrm{s}^{2}\) by means of the triceps muscle, as shown. Calcu. late (a) the torque needed, and (  ) the force that must be exerted by the triceps muscle. Ignore the mass of the arm.

FIGURE 8-45 Problem 38

Equation Transcription:

Text Transcription:

7.0 \mathrm{~m} / \mathrm{s}^{2}

ANSWER:

Step-by-step solution

Step 1 of 3

Mass of ball m = 3.6 kg

Acceleration of ball

Distance of the ball from the joint

Distance between triceps muscles

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