So,
X: m1v1=m1v1′cos30°+m2v2′cos45°m_1v_1=m_1v_1'\cos30°+m_2v_2'\cos45°m1v1=m1v1′cos30°+m2v2′cos45°
Y: m1v1′sin30°=m2v2′sin45°m_1v_1'\sin30°=m_2v_2'\sin45°m1v1′sin30°=m2v2′sin45°
We get
v2′=m1v1m2sin45°sin30°+m2sin45°=0.06⋅0.50.085⋅sin45°sin30°+0.085⋅sin45°=0.17(m/s)v_2'=\frac{m_1v_1}{\frac{m_2\sin45°}{\sin30°}+m_2\sin45°}=\frac{0.06\cdot 0.5}{\frac{0.085\cdot\sin45°}{\sin30°}+0.085\cdot\sin45°}=0.17(m/s)v2′=sin30°m2sin45°+m2sin45°m1v1=sin30°0.085⋅sin45°+0.085⋅sin45°0.06⋅0.5=0.17(m/s)
v1′=m2v2′sin45°m1sin30°=0.085⋅0.17⋅sin45°0.06⋅sin30°=0.34(m/s)v_1'=\frac{m_2v_2'\sin45°}{m_1\sin30°}=\frac{0.085\cdot 0.17\cdot\sin45°}{0.06\cdot\sin30°}=0.34(m/s)v1′=m1sin30°m2v2′sin45°=0.06⋅sin30°0.085⋅0.17⋅sin45°=0.34(m/s)
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