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kingyof2thejring
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Hi there,
i need to know if my approch to this question is right
Particles A, B and C , each of mass m, lie at rest in a straight line in the order stated. A is projected directly towards B with velocity u. The coefficient of restitution is 0.5 in each impact that follows. Show that there will be three impacts in total and find the final velocities of each particle.
working with a and b first
work out momentum before mom = mu +0
and momentum after mom = mv1 + mv2
mu = m(v1 +v2)
u = v1 +v2 {1}
then using the equation velocity of separation = e x velocity of approach
v2-v1 = e(u1-u2)
v2-v1 = 0.5(u-0)
v2-v1 = 0.5u {2}
now adding {1} + {2} > v2=0.75u
v1=0.25u
i would appreciate some advice on my technique/approch to this question
thanks in advance
i need to know if my approch to this question is right
Particles A, B and C , each of mass m, lie at rest in a straight line in the order stated. A is projected directly towards B with velocity u. The coefficient of restitution is 0.5 in each impact that follows. Show that there will be three impacts in total and find the final velocities of each particle.
working with a and b first
work out momentum before mom = mu +0
and momentum after mom = mv1 + mv2
mu = m(v1 +v2)
u = v1 +v2 {1}
then using the equation velocity of separation = e x velocity of approach
v2-v1 = e(u1-u2)
v2-v1 = 0.5(u-0)
v2-v1 = 0.5u {2}
now adding {1} + {2} > v2=0.75u
v1=0.25u
i would appreciate some advice on my technique/approch to this question
thanks in advance
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