After a completely inelastic collision, two objects of the same mass and same initial speed are...
After a completely inelastic collision, two objects of the same mass and same initial speed are found to move away together at 1/5 their initial speed. Find the angle between the initial velocities of the objects.
PLEASE WORK OUT. THANKS.
Homework Answers
let initial angle be θ1 and θ2
conservation og momentum along
mvcosθ1 + mvcosθ2 = 2mv/5
vcosθ1 + vcosθ2 = 2v/5
cosθ1 +cosθ2 = 2/5 --eqtn 1
vsinθ1 = vsinθ2
so θ1 = θ2
2cosθ1 = 2/5
cosθ1 =1/5
θ1 = 78.46 degree
so angle between their velocity = 2 * θ1 = 156.9 degree
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