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28 August, 18:19

Two carts with masses of 4.32 kg and 2.66 kg move toward each other on a frictionless track with speeds of 4.86 m/s and 3.93 m/s respectively. The carts stick together after colliding head-on. Find the final speed.

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  1. 28 August, 18:31
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    m¹v¹+m¹v¹ = (m¹+m²) v

    4.32*4.86+2.66*3.93 = (3.96+4.86) v

    v=31.44/8.82

    =3.56
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