a cannon of mass 5m ( including a shell of mass m )is at rest on a smooth horizontal ground fires the shell with its barrel at an angle A with the horiZontal at a velocity u relative to the cannon. Find the horiZontal distance of the point where shell strikes the ground from the initial position of the cannon -I need the procedure
Shuvam Shukla , 11 Years ago
Grade 12
2 Answers
tejas naresh patel
Last Activity: 11 Years ago
345
Akash Kumar Dutta
Last Activity: 11 Years ago
since initial momentum is 0 final must also be, relative=u hence absolute=u + v...where v=recoil velocity, 4m.v=m(u+v) v=u/3 hence initial velocity=u+u/3=4u/3 and angle of projection=A hence Range= 16 u^2 sin2A ____________ ANS 9g
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