Umm for the horizontal recoil speed I used conservation of momentum:
Momentum Initial = Momentum Final
so 0 = mbullet*vbullet - mcannon*vcannon
vcannon = mbullet*vbullet/mcannon
mcannon = 4m, vbullet = vcos(θ), mbullet = m
so vcannon = mvcos(θ)/4m -> vcos(θ)/4
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For the...
AP Physics Momentum/Collision problem..
Homework Statement
"A projectile of mass M is fired at an angle Theta (with the horizontal) from a cannon of mass 4M and velocity V on a friction-less flat surface. Determine Theta such that the distance from the end of the cannon (the hole of the...