A thin empty frame is hung along side A (see figure). Side A is 1.08 m long and side B is 0.9446 m long. Side C is hit by a bullet with a mass of 21.51 g, an initial speed of 188.825 m/s and a final speed of −113,566 m/s. Calculate the rotational speed of the frame after the ball has bounced against it if the frame rotates frictionlessly about the z-axis and the mass moment of inertia of the frame around this axis is 1,563 kg · m². Assume that the ball bounces straight back after the impac
A thin empty frame is hung along side A (see figure). Side A is 1.08 m long and side B is 0.9446 m long. Side C is hit by a bullet with a mass of 21.51 g, an initial speed of 188.825 m/s and a final speed of −113,566 m/s. Calculate the rotational speed of the frame after the ball has bounced against it if the frame rotates frictionlessly about the z-axis and the mass moment of inertia of the frame around this axis is 1,563 kg · m². Assume that the ball bounces straight back after the impac
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A thin empty frame is hung along side A (see figure). Side A is 1.08 m long and side B is 0.9446 m long.
Side C is hit by a bullet with a mass of 21.51 g, an initial speed of 188.825 m/s and a final speed of −113,566 m/s. Calculate the rotational speed of the frame after the ball has bounced against it if the frame rotates frictionlessly about the z-axis and the mass moment of inertia of the frame around this axis is 1,563 kg · m². Assume that the ball bounces straight back after the impact.
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