Two thin rods of mass M (each) with a length L 1 and L 2, respectively, are conn
ID: 2144157 • Letter: T
Question
Two thin rods of mass M (each) with a length L1 and L2, respectively, are connected as shown in
the figure. Assume that the rods rotate about an axis (perpendicular to the two-rod plane) at the top end of the vertical rod. (a) What is the moment of inertia of the structure? A clay ball of mass m moving at speed v (see the figure).The ball sticks and sticks to the junction of rods. (b) Find the rotational velocity just after the collision. After the collision, the rods
pivots about the top point through angle ? before momentarily
stopping. Find?.
Explanation / Answer
i asumed the rods are oriented in a shape '+'
I1 = M*L1^2/3
I2 = M*L2^2/12 + M*(L2/2)^2
I2 = M*L2^2/3
I_total = I1 + I2 = (M/3)*(L1^2+L2^2)
b) i cant understand the question
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