In an elastic collision between two bodies of equal mass, with body 2 initially at rest, body 1 moves off at angle ? relative to the direction of its initial velocity and body 2 at angle ?. The sine of the sum of ? and ?, sin(? + ?), is equal to
A. 0.
B. 0.500.
C. 0.707.
D. 0.866.
E. 1.00.
Answer: E
Physics & Space Science
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