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77julia77 [94]
3 years ago
8

In a Physics 111 laboratory experiment, a cart with a mass of 0.80 kg and a velocity of 0.50 m/s collides elastically into a sta

tionary cart with a mass of 1.0 kg. After the collision, what is the velocity of the 0.80 kg cart?
Physics
1 answer:
faust18 [17]3 years ago
7 0
 Elastic collisions<span> are collisions in which both </span>momentum<span> and kinetic energy are conserved. </span><span>The total system kinetic energy before the collision equals the total system kinetic energy after the collision. We calculate as follows:

m1v1 = m1v1' + m2v2'
0.80(0.50) = (0.80)(0.80-1)/(0.80+1)(0.50) + 1v2'
v2' = 0.11

Hope this helps. Have a nice day.

</span>
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Answer:

39.81 N

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I attached an image of the free body diagrams I drew of crate #1 and #2.  

Using these diagram, we can set up a system of equations for the sum of forces in the x and y direction.

∑Fₓ = maₓ

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We have 3 known variables and we can solve for the tension force.

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The tension force is the same throughout the string, therefore, the tension in the string connecting M2 and M3 is 39.81 N.

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