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    A 29.9 kg cart traveling at 0.25 m/s (this movement defines the positive direction) has a head on elastic collision with a 40.5 kg cart. If the final velocity of the first cart is 7.164, what was the initial velocity of the second cart?

    m/s?

    A 11.6 kg cart traveling at 5.05 m/s (this movement defines the positive direction) has a head on elastic collision with a 40.7 kg cart. If the final velocity of the first cart is 5.625, what was the initial velocity of the second cart?

    m/s?

    A 7.2 kg cart traveling at 8.11 m/s (this movement defines the positive direction) has a head on elastic collision with a 9.5 kg cart. If the final velocity of the first cart is 5.538, what was the initial velocity of the second cart?

    m/s?

    A 19.7 kg cart traveling at 6.96 m/s (this movement defines the positive direction) has a head on elastic collision with a 35 kg cart. If the final velocity of the first cart is 6.691, what was the initial velocity of the second cart?

    m/s?

    A 14.3 kg cart traveling at 3.53 m/s (this movement defines the positive direction) has a head on elastic collision with a 35.2 kg cart. If the final velocity of the first cart is 5.563, what was the initial velocity of the second cart?

    m/s?

    A 13.2 kg cart traveling at 3.71 m/s (this movement defines the positive direction) has a head on elastic collision with a 0.4 kg cart. If the final velocity of the first cart is 3.765, what was the initial velocity of the second cart?

    m/s?