7. In the figure, block 1 with mass m₁ starts from rest at height h = 2.00 m on a frictionless ramp and then slides down and has an elastic collision with block 2 with mass m2. The masses are related by m₁ = 2.00 m2. What is the speed (m/s) of block 2 just after the collision?

(A) 0.45
(B)8.35
(C)11.2
(D) 2.34
(E) 4.01
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統計: 尚無統計資料
統計: 尚無統計資料