Elastic Cart Collision of a stationary and a moving cart
I'm having some trouble with some homework and I'm hoping someone can help me.
#6. Cart1, with mass m, is initially at rest and is struck by cart2,
which has a mass of 336 kg and initial speed of 1.81 m/s. The collision
is elastic and after the collision cart2 continues to move in its
original direction at 0.807 m/s. Find m, the mass of cart1.
#7.Find the speed of cart1 after the collision.
ATTEMPT AT SOLUTION:
I have calculated that
I'm stuck here. I tried calculating the amount of energy the second
cart should have
and then that
169J=0.5m1(v1)^2 so that
and subbing that into
thus v1' =338/337
This however does not answer #7 and when working backwards to find the
mass it also provides the wrong answer.
Thank you for any assistance you can provide.
EDIT: Oops, dumb mistake, I got it!
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