Phy 201
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A steel ball of mass 60 grams, moving at 80 cm / sec, collides with a stationary marble of mass 20 grams. As a result of the collision the steel ball slows to 50 cm / sec and the marble speeds up to 70 cm / sec.
Is the total momentum of the system after collision the same as the total momentum before?
answer/question/discussion: ->->->->->->->->->->->-> :
yes the total mommentum will remaint the same as
that is not the case for the given quantities
total monmmentum = final mommentum - initial mommentum
What would the marble velocity have to be in order to exactly conserve momentum, assuming the steel ball's velocities to be accurate?
answer/question/discussion: ->->->->->->->->->->->-> :
As, m1v1 = m2v2 so by rearranging this equation we can find the velocity of the marble which is v2.
v2 = m1v1/m2 = 60*80/20= 240m/s
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15 minutes
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