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題組內容
三、The figure below shows two toy cars on a frictionless surface. Car A, with mass $30\mathrm{kg}$ , initially moves at $2.0\mathrm{m/s}$ parallel to the $x$ -axis. It collides with car B, which has mass $15\mathrm{kg}$ and is initially at rest. After the collision, car A moves at $1.0\mathrm{m/s}$ in a direction that makes an angle $\alpha = 30^{\circ}$ with its initial direction. What is the final velocity of car B?
(b) After collision
詳解 (共 1 筆)
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詳解 #7605359
題旨分析 本題考查二維碰撞中的動量守恆。...
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