A crustacean (Hemisquilla ensigera) rotates its anterior limb to strike a mollus

Question

A crustacean (Hemisquilla ensigera) rotates its anterior limb to strike a mollusk, intending to break it open. The limb reaches an angular velocity of 165 rad/s in 1.41 ms. We can approximate the limb as a thin rod rotating about an axis perpendicular to one end (the joint where the limb attaches to the crustacean). (a)If the mass of the limb is 26.7 g and the length is 3.62 cm, what is the rotational inertia of the limb about that axis?(b)If the extensor muscle is 2.92 mm from the joint and acts perpendicular to the limb, what is the muscular force required to achieve the blow?

Explanation / Answer

MI ( for a thin rod ) = 1/3 . M . R^2 = 1/3 . 0.0267 . 0.0362^2 = 1.17 . 10^

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.