(10%) Problem 6: A 1.75-kg falcon catches and holds onto a 0.65-kg dove from beh

Question

(10%) Problem 6: A 1.75-kg falcon catches and holds onto a 0.65-kg dove from behind in midair What is their final speed, in meters per second, after impact if the falcon's speed is initially 27 m/s and the dove's speed is 6.5 m/s in the same direction? Grade Summary 0% 100% Potential Submissions Attempts remaining: S (5% per attempt) detailed view sin() | cos() | tan() | | ( | ) | 7 | 8 | 9 cotan asinOacosO atan acotan)sinh0 cosh tanh cotanh0) o Degrees Radians 12 3 0 CLEAR Submit Hint I give up! Hints: 1 % deduction per hint. Hints remaining: 1 Feedback: 1% deduction per feedback.

Explanation / Answer

Conservation of momentum

m1u1 + m2u2 = (m1 + m2)v
v = m1u1 + m2u2 / (m1 + m2)

v = [1.75(27.0) + 0.65(6.5)] / (1.75 + 0.65)
v = 21.45 m/s

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