A particle of mass ππ collides elastically with a particle of mass 3ππ which is at rest. In the
πΆπΆ βframe, the particle of mass ππ moves with speed 3 ππ/π π at an angle of 60ππ after the
collision. Find the final velocity for the mass ππ in the laboratory frame.
Given quantities:
"m_1=m"
"m_2=3m"
"v_1=" "3 \\frac{m}{s}"
"\\alpha=60^o"
"v_2=0"
From conservation of momentum
"P_1+P_2=P_1^{'}+P_2^{'}"
"m_1v_1+m_2v_2=(m_1+m_2)U"
"mv_1cos60^o+o=4mU"
"U=\\frac{3*0.5}{4}=\\frac{3}{8}=0.375\\frac{m}{s}"
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