Question Number 24628 by ajfour last updated on 23/Nov/17
Commented by ajfour last updated on 23/Nov/17
$${m}_{\mathrm{1}} \:{hits}\:{m}_{\mathrm{2}} \:{elastically},\:{then} \\ $$$${m}_{\mathrm{2}} \:{hits}\:{m}_{\mathrm{3}} .\:{So}\:{that}\:\:{m}_{\mathrm{3}} \:{acquires} \\ $$$${maximum}\:{velocity}\:{find}\:{m}_{\mathrm{2}} \:{if} \\ $$$${m}_{\mathrm{1}} \:{and}\:{m}_{\mathrm{3}} \:{be}\:{given}.\: \\ $$$$\left({m}_{\mathrm{2}} \:{and}\:{m}_{\mathrm{3}} \:{were}\:{at}\:{rest}\:{initially}\right) \\ $$